Question

Can someone help me with these questions ASAP!!

Answer 1

Explanation:

Formula of the circumference of the circle is 2*pi*r

1.A=pi*r^2=pi*3^2=9pi

2.A=pi*10.8^2=

3.r=14/2=7 so

A=pi*7^2=49pi

4. A=pi*(31/2)^2Km^2=15.5^2*pi

5. semicircle

A=pi*16^2/2cm^2=

6.A=pi*(22.6/2)^2=11.3^2*pi

Answer 2

Hope this helps with your questions :)