Question 872213
what is the solution of if the perimeter of a semicircle is 72cm
Find the radius of the semi-circle
diameter + half the circumference = 72 cm
2r + pi*r = 72
r(2+pi) = 72
r = {{{72/((2+pi))}}}
r = 14
:
what will be the area of that semicircle?
A ={{{1/2}}}*{{{pi*14^2}}}
A = 307.9 sq/cm