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Nairaland Forum / Nairaland / General / Education / For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This (3862 Views)
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For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Mrshape: 7:13am On Jun 12 
Some one draw my attention to a problem recently that he think is incorrect, he have search the Internet with many website have the question but no diagram or solution to it, But behold the problem is correct, and easy, but I found out another problem of our students, which was also pronounced in the just concluded WASSCE mathematics question, I will reveal the problem I found out about our students later, Let someone attempt this first Now that the diagram has been drawn MY RECOMMENDATION, MATHS TEACHERS SHOULD HELP THEIR STUDENTS UNDERSTAND 3D CONCEPT. a lot of students did not answer a question in the just concluded WASSCE mathematics examination and they tag it wrong question, Asking questions like why why will angle at a point be more than 360° Were as that is a plane not a point. Thus they Skip the cheap geometry question. Attempt my other shape 1 Like

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by youngest85(m): 7:31am On Jun 12 
Very simple 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Mrshape: 7:35am On Jun 12 
youngest85:Yes it is, So it surprise me while the search for solution diagram everywhere, Bring your solution diagram lets see 2 Likes 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Halezis(m): 9:58am On Jun 12 
This is a straightforward bearing question nah 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Rezos017: 10:15am On Jun 12 
Most bright students, even a huge percent of maths teachers, would still struggle to come up with a diagram that captures this question. Its not the solution that's difficult; its the diagram. Most times, students are taught only two dimensional bearing problems, but three dimensional problems like the one in the post are completely ignored. 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Abeos(m): 10:50am On Jun 12 
Op I think this should be the diagram. The 24 should be at CB Not CA 3 Likes

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by damtan(m): 11:27am On Jun 12 
Abeos: 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by officialola(m): 11:32am On Jun 12 
Abeos: �� � 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Abeos(m): 11:35am On Jun 12 
officialola: Check back. 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 11:49am On Jun 12 
Let me get a pen. Brb 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:01pm On Jun 12 
Abeos:So, that is your 18m due north right? 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:03pm On Jun 12 
Rezos017:The problem is not the diagram. The question is even grammatically wrong. The first sentence is so wrong. There is a difference between "at" and "as". The opening line of the question says; C and D are observational posts on the same horizontal ground at the foot A of a vertical tower AB C and D cannot be on the same horizontal ground of the vertical tower and be at A as the questions says. Perhaps, they meant to say that; C and D are observational posts on the same horizontal ground AS the foot A of a vertical tower AB. The moment I saw this, I did not even bother to take the question serious. 7 Likes 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 12:14pm On Jun 12 
Mrshape: Is this what you are looking for?

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Rezos017: 12:17pm On Jun 12 
[quote author=naturalwaves post=79256917] The problem is not the diagram. The question is even grammatically wrong. The first sentence is so wrong. There is a difference between "at" and "as". [/quote Change "at" to "as", and you still wont get the diagram in two dimensions. Its three dimensional. Its a simple but slightly confusing diagram. Ive got it here. Still trying to upload it 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:20pm On Jun 12 
castro316:This diagram is wrong because your observational points C and D are not on the same horizontal ground as the foot A of the tower. 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:22pm On Jun 12 
[quote author=Rezos017 post=79257359][/quote] I have solved it by changing it. The question is quite tricky. If you do it well you would see why. 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 12:25pm On Jun 12 
naturalwaves:mr man that diagram is in 3D. Try drawing a cube and make the bottom surface stay on the same level on your paper. Then tell me your waec grade after 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by aorseer: 12:38pm On Jun 12 
castro316:This is the correct diagram. Kudos 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 12:46pm On Jun 12 
aorseer:Thanks. Proudly A1 Mathematics 1 Like 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:47pm On Jun 12 
Mrshape: SOLUTION Question says; C and D are observational posts on the same horizontal ground at the foot A of a vertical tower AB. The tower is 18m due North of D and 24m due East of C Question should be C and D are observational posts on the same horizontal ground AS the foot A of a vertical tower AB. The tower is 18m due North of D and 24m due East of C After correcting the grammar, this is how it should be solved. STEP 1 Mark a dotted point as the point D and trace it up to another dotted point. The second dotted point represents the tower. This should be a straight line. why? Because the question says the tower is 18m due North of D. So, label the line as 18m STEP 2 From that second dotted point which represents the tower, draw another straight, dotted lines to the left and put a dot at the end to represent C. Label it as 24m. Why? The question says that, the tower is 24m due East of C STEP 3 From the question , we know that points C and D are on the same horizontal ground. So, draw a straight line to join points C and D STEP 4 Draw a straight line to join the line /CD/ from our initially dotted point that represents the tower. THAT STRAIGHT LINE YOU HAVE JUST DRAWN IS THE TOWER AB STEP 5 We know from the question that the foot of the tower is A and the top is B. So, label the bottom that is now on the same line as /CD/ as A and label the top as B. You will then observe that the diagram is in line with the question as C,A and D are all on the same line. I will attach the necessary pictures when I get on a phone I can snap with or when I can sketch. I am on the laptop now. I hope this helps someone. Note that in the diagram, a straight line was drawn fom D to the tower point to show that the tower point is due north. The line is not the tower CC: Castro316, Rezos017, Mrshape,Abeos, Airtimex 2 Likes

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Abeos(m): 12:49pm On Jun 12 
naturalwaves: My bad . Although how will that due north be placed then cos it's a bit ambiguous 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Abeos(m): 12:50pm On Jun 12 
castro316: This should be right. Just checked back now, the question says both A, C & D are at horizontal levels so don't think the diagram is correct 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 12:53pm On Jun 12 
castro316:Oponu! no be only 3D na 4D. We are all here to learn. What you drew makes no sense. Your points, C, A ,D should be on the same horizontal ground according to the question.Now, look at the rubbish you drew. Is this too difficult to understand? You need to learn how to take contrary opinion. Anyway, I have attached a step by step guide to put your likes through. Follow the steps and see what you will get. In case you do not understand, I will be attaching a step after step image soon. Maths no be lacram la pour o. 1 Like 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 1:01pm On Jun 12 
Abeos:It is a tricky question. The whole idea is to make you realise that a horizontal level must not necessary be like this . It can be turned and still be a horizontal level. You attack these sort of questions by starting from the directions given and by following them step after step then everything will fall into place. 1 Like 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 1:05pm On Jun 12 
naturalwaves:The problem is understanding english language (statement problems) not the mathematics. The question says C and D are different observation points at the foot of a tower A Ie the same plane. From there start making your analysis. And before you start your insults, (which I will not indulge you) why did you come out to say my diagram is wrong without checking your facts? However draw yours. If you came to learn stop being a spectator. I am not C. Ronaldo or Messi. Biko. I am SS3 teacher and I know what I drew there 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 1:07pm On Jun 12 
Abeos:abeos think outside the box ad start thinking about planess not lines 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Rezos017: 1:07pm On Jun 12 
There you have it. Virtually every detail of the question is captured in the diagram. It makes comprehension and calculating much easier. 2 Likes

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by castro316(m): 1:11pm On Jun 12 
Rezos017:nice But you would have made the tower standing as the question says for better assimilation 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Rezos017: 1:13pm On Jun 12 
Oops! A little mistake in the diagram! The 35degrees should be at D not C. Except for that, everything else fits the question 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Rezos017: 1:19pm On Jun 12 
Just a little rotation. 1 Like

Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by Airtimex(m): 1:33pm On Jun 12 
Make una dey show una selves...If I draw my own, nairaland go shut down... Make I face my front... 1 Like 
Re: For More Than 4 Years Now Sec Sch Students Have Been Finding The Diagram To This by naturalwaves: 1:42pm On Jun 12 
naturalwaves:

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