Help me pls

Area=pi x r^2
so for the first area question, you would do a=pi x 5^2
a=78.539...
a=78.5cm^2 (It is shown on your screen as 25 pi but when simplified is this. Therefore, 25 pi is the correct answer.)

Use this for the rest of the area questions.

1.3 and 1 1/3 are both closest to 1. hope this ; )