Question

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

Answer 1

Given:

A semi circle with diameter 20 cm.

What to find?

We have the find the perimeter of the given semi circle.

How to find?

By using the formula  $\boxed{\frac{1}{2} (\pi*d)+d}$ where we will take $\pi$ = 3.14 to find the perimeter of the given semi circle.

Solution:

$\frac{1}{2}(\pi*d)+d$

Substitute the values,

⇒ $\frac{1}{2}(3.14*20)+20$

Solve the the brackets,

⇒ $\frac{1}{2}(62.8)+20$

Cancel 62.8 and 2,

⇒ 31.4 + 20

Add the numbers,

⇒ 51.4 cm

∴ Hence the perimeter of the semi circle is 51.4 cm.

Answer 2

Answer:

Here is your answer.

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