Question

ABC is a semi circle with center O.Find the perimeter and area of the following.​

Answer 1

Step-by-step explanation:

C=2πr

C=2(1/2)22/7(7) (as it is semi circle)

C=22

perimeter of semi circle is 22

A=1/2(π)r^2. (1/2. becauseit is a semi circle)

A=11/7(49)

A=11(7)

A=77...

A=528

Area of semi circle is 528