Question

Find the area of the irregular shape. Round to the nearest tenth.

There's a semi-circle on top of a rectangle with 8 as the base and 5 as the height.

A. 90.2 sq cm
B. 241 sq cm
C. 65.1 sq cm
D. 72.3 sq cm



Find the area of blue portion of the irregular shape. Round your answer to the nearest tenth.

A circle inside of a square, the circle has a radius of 2 in.

A. 2.7 sq in
B. 9.7 sq in
C. 3.4 sq in
D. 8.3 sq in

I'm having a hard time solving these two, if you could be so kind as to walk me through it, please do.

Answer 1

first one:
you have a
rectangle + half a circle
= 5*8 + (1/2)π (4^2)
= ...
can you see why the radius of the semicircles is 1/2 of 8 ?

2nd:
area of circle = π(2^2) = appr 12.566 inches^2
You didn't say what the square is like, I will assume the circle touches the square on all sides, so your square is
4 by 4, for an area of 16 inches^2

I also don't know what is shaded in blue, but you got the two parts, so ....

Answer 2

So what is the answer because I don't understand

Answer 3

TODY WOULD BE NICE

Answer 4

Wong, Sarah?

Answer 5

Add the area of the rectangle which is length x height
And then add the area of the semi-circle.

Answer 6

what is the answers

Answer 7

I have the answers.
1.B
2.D
3.A
4.C
5.C
100% just took the test

Answer 8

Thanks for the help, OwO

Answer 9

Is OwO right?

Answer 10

i need the work