Question

What is the area of a sector with radius 10" and measure of arc equal to 45°?

Answer 1

take area of circle times ratio of 45/360

Answer 2

(45/360) x pi x r x r

Answer 3

would it be 7.85? or no

Answer 4

\[A_{\text{circle}}=\pi\times r^2\]
\[A_{\text{sector}}=\frac{\theta°}{360°}\times\pi\times r^2\]

Answer 5

In this example \[r=10\text{ in}\]\[\theta°=45°\]

Answer 6

7.85 is not correct

Answer 7

haha i accidentally put a 2piR instead of piR^2 I got 39.25 is that correct?

Answer 8

yes yes

Answer 9

ah!! haha YES!! haha success