Question

Find the area of a semi circle whose perimeter is 54

Answer 1

Answer:

$1 \div 2\pi r^{2}$

fill radius in this formula you will get your answer

Answer 2

Answer:

173.25

Step-by-step explanation:

perimeter formula=(1/2 pi *d)+d

54=(1/2*22/7*d)+d

d=21

area =pi*r square/2               (r=d/2)

173.25