Question

What is the formula for perimeter and area of a circle ?​

Answer 1

Answer:

perimeter of circle is 2 pie r.

area of circle is pie r square

Answer 2

Step-by-step explanation:

The circles circumference formula C, is C= 2* pi* r. A semicircle means half a circle . therefore, in order to find the area of a semicircle, one would need to divide the perimeter formula by two.