Question

find the perimeter of the following​

Answer 1

Answer:

22

Step-by-step explanation:

Circumference of circle = 2πr

Therefore circumference of a semicircle = πr

22/7 × 7 ( seven and seven cancel it )

= 22 cm

Answer 2

Answer:

Radius = 7cm

Perimeter of a semicircle = (πr + 2r)

= ($\frac{22}{7}$×7 + 2×7)

= 22×7+2

= 154+2

= 156cm