Question

If an exterior angle of a triangle is 130° and one of the interior opposite angle is 60°. Find the other interior opposite angle.

Answer 1

=> Let the interior opposite angle be x.
=> According to question...
=> 60° + x = 130°
=> x = 130° - 60°
=> x = 70°
=> therefor, the interior opposite angle is 70°.

Answer 2

Answer:

The other interior opposite angle is 70°

Step-by-step explanation:

Given,

The measure of an exterior angle of a triangle is 130°.

One of the interior opposite is 60°.

Here we want to find other interior opposite angle.

Let,x be the other interior opposite angle of an exterior angle of measure 130°.

We know ,Sum of two opposite interior angles are equal to exterior angle.

So,

${60}^{o} + x = {130}^{o}$

We are separating variable and constant part,

$x = {130}^{o} - {60}^{o}$

We are Subtracting 60° from 130°.

So,

$x = {70}^{o}$

Required value of other interior angle is 70°.