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Re: Can You Solve This Math That Baffled Australian Students? by predatorX: 8:04pm On Nov 04, 2015 |
EverestdeBliu:. femi4: Femi make i help am understand small you sound very learned!! Why do i deduce contradictions in your arguments using basic mathematics: center of the Polygon is 360, divided by 12 = 30degrees. from center to circumference are 2 equal radii forming an ISOCELES triangle of equal BASE ANGLES = 2Y Sum of angles in ISOCELES triangle = 30 + 2Y =180 2Y=180-30; 2Y = 150; Y =75 if you re-construct the shape, using X as the centre, you would have 4 x 75 = 300 360 -300 = 60 A-LEVOS Concerning my re-constructions, it doesn't necessarily have to be geometrically solved. Geometry is just the beginning of Line theories. i do not think you've heard of a topic called "VECTORS" before. i just applied vector rotation principle and got an equilateral triangle at the centre. I can assume all chords as unit vector representations and solve vectorially too. The circle is the Alpha and Omega of any construction, it is the only thing that is perfect from an engineering point of view. i could also decide to take the length of one radius of the polygon and continuously project concentric circles using that same radius, until i arrive at a circle whose centre is the X in question. From there i would know what angle is at the centre. AutoCAD would come in handy here if you are the kind who did not do TD in school. All said, the answer is 60, TAKE IT TO JUPITER 1 Like |
Re: Can You Solve This Math That Baffled Australian Students? by amanikondo: 8:04pm On Nov 04, 2015 |
Le me eat Eba first. |
Re: Can You Solve This Math That Baffled Australian Students? by Nobody: 8:08pm On Nov 04, 2015 |
monex: Hmmm...why assume its an equilateral triangle cos it looks so? Though ur answer's correct but in math u shouldn't assume if its not clearly stated. Ok if d number of sides was 10 instead of 12, dat area would still luk like an equilateral triangle but d answer won't be 60 1 Like |
Re: Can You Solve This Math That Baffled Australian Students? by Nobody: 8:12pm On Nov 04, 2015 |
Rexyl: 30 + 30? Which n which 30 and how does it add up to d angle btw d coins? Actually those two lines drawn within d polygon are useless to d questn. It can still b solvd w/o d lines |
Re: Can You Solve This Math That Baffled Australian Students? by Nobody: 8:14pm On Nov 04, 2015 |
proudly9ja: Talk within d context of d question. |
Re: Can You Solve This Math That Baffled Australian Students? by Nobody: 8:16pm On Nov 04, 2015 |
Kockane: I think its d angle btw d coins that's being asked for. And yea there's notin baffling abt d questn. I think d headline's just catchy |
Re: Can You Solve This Math That Baffled Australian Students? by Koolmexxi(m): 8:19pm On Nov 04, 2015 |
kaycexx:I spent my early primary school years there.. Bright future Academy.. Don't know if it's still there |
Re: Can You Solve This Math That Baffled Australian Students? by Nobody: 8:21pm On Nov 04, 2015 |
Jacksonville: Best n simplest approach. Don't know why some pple are complicating it n talking abt t-square. 1 Like |
Re: Can You Solve This Math That Baffled Australian Students? by galantjoe(m): 9:26pm On Nov 04, 2015 |
a coin is circle.angle of a circle is 360degree. each section ot the coin is 30 ie 360/12. so the angle at the tangent is 30 degree. corresponding angles are equal. answer is 30 degree |
Re: Can You Solve This Math That Baffled Australian Students? by babseg(m): 10:07pm On Nov 04, 2015 |
melakes: I like u die because u r a proud olodo 2 Likes |
Re: Can You Solve This Math That Baffled Australian Students? by Theflint1(m): 10:55pm On Nov 04, 2015 |
babseg:Where's your proof? Clown. |
Re: Can You Solve This Math That Baffled Australian Students? by wemmy01(m): 11:27pm On Nov 04, 2015 |
simply 360/12 wch is 30 |
Re: Can You Solve This Math That Baffled Australian Students? by alexis2: 11:53pm On Nov 04, 2015 |
the chords are 12,so d Centre angle for each of the obtu se triangle is 30degrees.then obtuse triangle has each of the base angles as 75 degrees (180-30=150/2=75).then for angle x,knowing that angle at a point is 360. then 360 -(75+75+75+75 ie 4 angles of d obtuse that makes d point)=60 tnks I love maths because it truly defines the saying that there are many ways to kill a rat |
Re: Can You Solve This Math That Baffled Australian Students? by Theflint1(m): 1:15am On Nov 05, 2015 |
babseg:That's the man, thumbs up. You just learnt a lesson in proper reporting. Next time, post a link to any report you are giving. You ain't a clown no more. |
Re: Can You Solve This Math That Baffled Australian Students? by blazingkid21(m): 2:10pm On Nov 05, 2015 |
babseg:what ur own answer |
Re: Can You Solve This Math That Baffled Australian Students? by Mpanyi: 8:18pm On Nov 05, 2015 |
60 degrees. simple! |
Re: Can You Solve This Math That Baffled Australian Students? by dsavant(m): 9:34pm On Nov 05, 2015 |
Complete circle=360' since there are 12 angles on this circle, tthen x=360 / 12. X=30 |
Re: Can You Solve This Math That Baffled Australian Students? by chadwidfriz: 10:33am On Apr 04, 2016 |
angle of an equilateral triangle 60° datz what we are lookin 4 shaa
simple
|
Re: Can You Solve This Math That Baffled Australian Students? by Chukwuka16: 10:38am On Apr 28, 2018 |
swezenberg: Are you sure it's not 60 degrees? 150 degrees on each polygon away from angle at a point (360-300) leaves 60 degrees. Just saying. |
Re: Can You Solve This Math That Baffled Australian Students? by Martinez19(m): 10:58am On Apr 28, 2018 |
60° |
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