Question

find the measure of third angle of angles are 40 degrees , 80 degrees​

Answer 1

Answer:

Given :-

• Angles of triangle = 80⁰ and 40⁰

To Find :-

Third angle

Concept :-

At first we will assume the third angle as x. Then, we will use the angle sum property of triangle.

Solution :-

Let the 3rd angle be x

$\sf \: In \: a \: \triangle \:$

$\large \sf \angle \: A \: + \angle \: B + \angle \: C = 180$

$\large \sf \: 80 + 40 + x = 180$

$\large \sf \: 120 + x = 180$

$\large \sf \: x = 180 - 120$

${ \fbox{ \fbox { \fbox{x = 60 }}}}$