Question

perimeter of semi circle whose radius=7
(USE 22/7)

Answer 1

Answer:

p=22

Step-by-step explanation:

perimeter of semi circle= pi×r

22/7 × 7

p= 22

Answer 2

Step-by-step explanation:

Circumference/Perimeter of a Circle = 2πr

As semicircle is half the circle,

Perimeter of semicircle =

$\frac{1}{2} \times 2\pi \: r$

= πr

Putting the values,

r = 7 cm

Perimeter =

$\frac{22}{7} \times 7$

Perimeter = 22

${cm}^{2}$

Hope it helps..!!☺