Question

Question attached.

Answer 1

Okay, in my notes it says that to find the area of a circle you do this:
A= 3.14 * r (to the second power)
And then to find the area of a semicircle you just divide it be 2
So 3.14 * 9(to the second)= 254.34/2=
127.17
Is that right?

Answer 2

yes

Answer 3

if helped please fan me and give me a medal

Answer 4

@iPwnBunnies

Answer 5

No, that's not right. The 'r' in the formula for the area of the circle is the radius of the circle, not the diameter. You have to find the radius of the protractor, first.

Answer 6

Thank you! I knew I did something wrong!

Answer 7

And then yes, divide by 2 since it's a semicircle.