Question

find the perimeter of the following geometrical shape.
$\pi equals \: to \: 3.14$

Answer 1

Solution:-

It is in the shape of Semi- Circle.

Therefore, Perimeter of Semi- Circle

$perimeter \: o f \: semicircle \: = pi \: r + 2r \\ \\ = > 3.14 \times 12 + 2 \times 12 \\ \\ = > 37.68 + 24 \\ \\ = > 61.68$

Answer 2

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GIVEN

radius = 12cm

The given figure is a semi circle.

Semi - Circle is half the circle.

Then,

If the perimeter of the circle is 2ㅠr

The perimeter of the semi for circle will be

(1/2)(2ㅠr)

= ㅠr
= (3.14)(12)

= 37.68 cm

Then add the diameter

= 37.68 + 24
= 61.68 cm


HOPE IT'S HELPFUL!!!