Question

Two angles of traingle is 40° and 60° . find the measurement of the third angle​

Answer 1

Let the third angle be
`{x°}`

Since the sum of all three angles of a triangle is 180°,

We have

40°+60°+
`{x}` = 180°

→ 100+
`{x}` = 180°

`{x}` = 180-100 = 80°

The measure of the third angle is 80°

Answer 2

80 degrees

Explanation:

the angles in a triangle all add up to 180 degrees