Question

find the perimeter of semicircle whose radius is 12cm.(π= 3.14
) ​

Answer 1

Answer:

75.36cm

Step-by-step explanation:

$half\times 2 \times 3.14\times {r}^{2}$

1/2×2×3.14×12^2cm

2×3.14×12cm

6.28×12

=75.36cm

Answer 2

Answer:

perimeter (circumference) =πr

3.14(12)

37.68cm