Question

The sides of a triangle are 122m, 22 m, 120m respectively. The semi perimeter

of the triangle is ____

(a) 132 m (b) 130 m (c) 140m (d) 142m​

Answer 1

Step-by-step explanation:

ANSWER:-

Given is:-

• Side 1 as 122 m
• Side 2 as 22 m
• Side 3 as 120 metre.

To find:-

Semi Perimeter.

Concept:-

Semi Perimeter:-

The addition of all the sides and divides by 2 gives us the Semi perimeter of the triangle.

Let's Do!

$s = \dfrac{</strong><strong>Side1</strong><strong> +</strong><strong> </strong><strong>Side2</strong><strong> + </strong><strong>Side3</strong><strong>}{2}$

$s = \dfrac{122 + 22 + 120}{2}$

• S is the semi perimeter.

$\dfrac{264}{2}$

$= 132$

So, requires answer is 132 metre.

Do not forget to put the correct units, here as metre (m).

Perimeter of a triangle :-

It is the addition of all three sides of a triangle.