Question

Q.4. If area of semicircular
region is 1232 sq cm , find its
perimeter.​

Answer 1

Answer:

143.9714

Step-by-step explanation:

this is answer nd formula of semi circle is hald pai r square

Answer 2

Step-by-step explanation:

area of semicircle =

$\pir { \div 2}^{2}$

22/7xr^2/2=1232

77/2xr^2=1232

r^2=1232x2/77

r^2=112x2/7

r^2=6x2

r=

$\sqrt{12}$

perimeter of semicircle = pie x r

22/7xr

22/7xroot 12

22 root 12/7