Question

if the perimeter of an isosceles triangle with equal sides 8 cm each is 22 cm find its third side

Answer 1

As per the data given in the question,

We have to determine the value of third side of the isosceles triangle.

As per question,

It is given that,

Perimeter of isosceles triangle = 22 cm

As measurement of equal side = 8 cm

As we know that,

In isosceles triangle, the both sides of the triangle are equal.

So, the measurement of side will be 8 cm and 8 cm.

So, let the third side will be x cm.

As we know that,

Perimeter can be calculated by adding the length of all the sides of triangle.

So, we will get,

$8+8+x = 22\\=>16+x = 22\\=>x = 22-16\\=>x = 6\:cm$

Hence, value of third side will be 6 cm.

Answer 2

From the data given in the question,

We have to determine the value of the third side of the isosceles triangle.

As per the given question,

It is given that,

The Perimeter of the isosceles triangle =$22 cm.$

As the measurement of equal side $=8cm.$

As we know that,

In the isosceles triangle, both sides of the triangle are equal.

So, the measurement of the side will be=$8 cm$ and $8 cm.$

So, let the third side will be $x cm.$

As we know that,

The perimeter can be calculated by adding the length of all the sides of the triangle.

So, we will get,

$\Rightarrow 8+8+x=22\\\Rightarrow 16+x=22\\\Rightarrow x=22-16\\\Rightarrow x=6.$

Hence, the value of the third side will be $6cm.$