Question

two angle of triangle are equal and the third angle measure 80°. find the measure of each of unknown angles​

Answer 1

Hi,

Here is your answer

Given:

Two angles of triangle are equal

Third angle=80°

To find:

The other two angles

Solution:

Let us take the other 2 angles each as x

We know that sum of the 3 angles=180° by angle sum property

Hence

x+x+80=180

2x=100

x=50°

Therefore both the angles are 50°each.

Hope this helps you.

Answer 2

Answer:

Measure of each of unknown angles​ = 50°

Step-by-step explanation:

We know, Sum of all angles of a triangle = 180°

Let the unknown angle be x.

⇒ x + x + 80° = 180°

⇒ 2x + 80° =  180°

⇒ 2x = 180° - 80°

⇒ 2x = 100°

⇒ x = 100° ÷ 2

⇒ x = 50°

∴ Measure of each of unknown angles​ = 50°