Question

Can someone check my answer? (Find the area.)

Answer 1

You can already cross out A and D, since you already know B is incorrect. C (your choice) must be correct.

Answer 2

A is too little. D is too huge.

Answer 3

The radius is the length of KF. With Pythagoras you find the length of KM, where M is the middle of the segment GF. Then the area of the shown triangle is KM*8/2.

Multiply this area by 20 (there are 20 little triangles in the decagon) and you obtain answer C.

Answer 4

I too would say C. Why? Because to find the area of a circle, you do r^2 (pi) .
The radius of this decagon is 25.89. So 25.89^2 would give you 670.29.
Next you would pi that to get about 2104.
I know that it is a decagon, but you can think of it as a circle. Since it has 10 sides, the area of it should be a little bit smaller than the area of a circle.
Does it make sense?
I hope this help!

Answer 5

So everyone decide C is correct?

Answer 6

Ashelyvee; Your answer has been observed and endured to be correct.

Answer 7

thanks!

Answer 8

Welcome!(: