Question

please answer this as fast as you can please.
I will mark them as brainlist ​

Answer 1

Answer:

area of semicircle=1/2πr²

perimeter of semicircle=πr

Answer 2

Answer:

Since the area of a circle is pie r square then area of a semi circle will be 1/2pie r square.

Perimeter of a semicircle will be 1/2 pie d(diameter)