Question

Can someone check my answer for this?

Answer 1

I got aprx 121

Answer 2

No I think It's wrong answer
First find the area of the rectangle

Answer 3

then subtract the area of the 2 semi circle which actually is one circle its radius half of the width

Answer 4

Not 121 or close unfortunately. Do what @ghaida suggested.

Answer 5

\[\sf \text{Area of rectangle} = A= l\cdot w\]\[\sf \text{area of circle} = A= \pi r^2~,~ r = \frac{D}{2}\]

Answer 6

@heythatsness Do you have a revised answer for this problem or do you want to start over at the beginning?

Answer 7

I have 420 for the area of a rectangle

Answer 8

And now find the area of the 2 semi circles, or rather, full circle.

Answer 9

I got 153.94 for one semi circle

Answer 10

and since there's two I add them both and get 307.88?

Answer 11

Good, now subtract the area of the rectangle - area of the 2 semicircles (full circle)

Answer 12

That gives you the area of the paper that remains.

Answer 13

I got 266.06

Answer 14

Let's check:

Answer 15

\[420 - 49\pi = 266.06 ~\checkmark\]

Answer 16

Good job :)

Answer 17

Thanks for helping!