Question

The vertical angle of an isosceles triangle is 80°. Find the measurement of its base angles.
Please solve with solution.

Answer 1

We know that sum of measures of a triangle = 180.

Given that Vertical angle of an Isosceles triangle = 80.

Let the base angle be x. In isosceles triangle two sides are of equal length.

= > 80 + x + x = 180

= > 80 + 2x = 180

= > 2x = 180 - 80

= > 2x = 100

= > x = 50.

Therefore, the measure of its base angles are 50 degrees.

Hope this helps!

Answer 2

Answer:

Step-by-step explanation:

Let the base be x° and x°

Vertical angle of an isosceles triangle =80°

So,

( x + x + 80)° = 180°

2x + 80 = 180

2x = 180 - 80

2x = 100

X = 100/2

X = 50

So,its base angles are 50° and 50°

Hope it helps...!!!