Question

How do you use what you know about triangles to find the measure of third angle `A=23^circ, B=86^circ, C=x`?

Answer 1

We use the knowledge that sum of the angles of a triangle is `180^@` to find e measure of third angle and `/_C=71^@`

Explanation:

We use the knowledge that sum of the angles of a triangle is `180^@` to find e measure of third angle.

As `/_A=23^@` and `/_B=86^@`

`/_C=180^@-23^@-86^@=71^@`