## -Welp- one year ago Is this correct? "Find the shaded area of the trapezoid. Leave your answer in terms of pi"

1. -Welp-

|dw:1438567625470:dw| 85-16=69

2. sepeario

Ok let me do this.

3. sepeario

Area of trapezoid = $17/2 * 8 = 68$

4. sepeario

Area of circle = $\pi 4^2 = 50.24$

5. sepeario

It says leave it in terms of pi, but how did you get 85?

6. sepeario

And 16?

7. anonymous

$68-16 \pi$

8. -Welp-

"It says leave it in terms of pi, but how did you get 85? " $\pi R2$ I used this for the circle $\frac{ a+b }{ 2} * h$ and this for the trapezoid

9. -Welp-

Thanks!

10. sepeario

Okay let's work through this together. Show me how you worked out the area of the circle.