₦airaland Forum

Martinez39:
Awaiting more shapes tomorrow.

Sure sir

Martinez39:
My work, using coordinate geometry.

1) Fix the diagram on a rectangular coordinate system such that point O is at the origin and CD lies on the x-axis. Doing this gives the following coordinates:
O(0, 0), F(4, 0), D(6, 0), E(-3, 0), C(-6, 0)

2) The equation of the circle that yields the bigger semicircle is

and the equation of the circle that yields the smaller semicircle is


3) the smaller semicircle contains the points F(4, 0) and E(-3, 0) therefore the coordinates of both points satisfies eq. (2)

Solving (3) & (4) simultaneously, we will discover thath = ½ and substitution into either (3) or (4) yields k² + (49/4) = r²

4) Observe that point (h, k), O(0, 0) and point B are vertices of a right triangle of sidea, b, and c such that


5) r² = |AB|²/4
|AB|² = 4r² = 96 unit²

|AB|² = 96 unit²

Good one.

Boringdraw1:
AB^2= 96 unit^2

96 is correct show ur workings please.

No response or is it a case of local man cannot can?

Find (AB)^2 in the figure below

Boringdraw1:
Which kind maths question be this?

I will bring detailed solution tomorrow

I

The clinic will pay for damages,
How did the cleaner get to know the condition of a patient,
Besides knowing it she the cleaner has just announced to the people in the clinic a confidential content.

Please give any useful information on our to get it.
Basic electronics and applied electricity.

No one has brought solution yet.
Please drop your solution

Kkings11:
Howdy Mr shape.
I think you should start giving us who are maths enthusiasts but don't know where to start from clues.

Instead of us just waiting for the answer we could dabble on the maths a bit..

Thanks nd keep the good work going

Thanks for the encouragement,
But giving a clue of what to do will make the maths less interesting,
What makes it maths is your ability to think and find a way out to solve the problem,
Martinez39 has explained what you need to improve ,
but knowledge is not only what you need to solve shape, you also need wisdom, I think you can archive that by a lot of practice and interaction with us here to see new perspectives.

Darivie04:
A = 5sin²(36°) x tan(54°)/4sin²(108°) x b² = 0.6571638901 x b² units²

Solution will come later.

Ok looking forward to ur solution.

Martinez39:
A = (b²/12)((325 - 55√5)/2)^½ ≈ 0.65716389015 × b²

Good √√√√√√√√π
Show your workings sir

Anyone?

Find the area of polygon in terms of b

It is more than that amount
The ratio of bet outlets to provision shope will be close to 1:10
We are not puting into consideration the number of people that bet online.
And the rate of patronage in a bet store us even higher than a provision/foodstuffs shope.
This shows that in Nigeria people bet more than they feed.
By my rough estimate that amount is an understatement.

Martinez39:
Awaiting more shapes tomorrow.

Sure sir I will bring tomorrow's shape at the appointed time.

Darivie04:
This is my synthetic geometry approach

Nice one if you start considering equation of straight line , perpendicular and tangent, u will run into problems,
I believe that s what Martinez39 tried using

Martinez39:
Chai! See as solution simple.

Lol, that's shape for you.

Martinez39:
Coordinate geometry will complicate things.

It will if you start using equation of a straight line equation perpendicular to a straight line, but if u use primary school coordinate geometry which also uses basic analysis you will get it in no more than two lines.

Darivie04:
Exactly!! My solution is more or less similar to this.

I'm trying to do it with coordinate geometry.

Ok good one.
Yes I can still be done by coordinate geometry

@Martinez39 @Darivie04 @kkings11 and @everyone.
here is a suggested solution
You can also drop your perspective their is beauty in variety.