Question

Answer for this question with explanation

Answer 1

Answer:

308 cm

Step-by-step explanation:

perimeter of a semicircle is 1/2 π d+d

given d=14 cm

1/2x22/7x14+14=308 cm

Answer 2

Answer:

36 cms

Step-by-step explanation:

this is a semicircle, which is half of a circle.

perimeter of circle is nothing but circumference = 2πr

for semicircle, perimeter will be half of circle perimeter + diameter. so, P = 2πr/2+ 2r

P = πr+ 2r

here diameter = 14 cms

so , radius r = 14/2=7

perimeter = π * 7 + 2* 7

= 7 * 22/7 +14

= 22+14 = 36 cms