Question

find the perimeter of the adjoining figure (Take π =3.14)​

Answer 1

Answer:

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Answer 2

Answer:

Given

The diameter of the circle = 20 cm

So, its radius = 20/2 = 10 cm

Given figure is a semicircle

Perimeter =

$2\pi \: r \div 2 = \pi \: r$

= 3.14 X 10

= 31.4 cm

The perimeter of given figure

$\pi \: r + d$

where d is diameter of the circle.

so,

$\pi \: r + d \\ = 31.4 + 20 \\ = 51.4 \: cm$

The perimeter of the given figure = 51.4 cm