Question

What is the value of x?
65°, 79° , X

Answer 1

x=36 degrees

Explanation:

Remember that all angles of a triangle must add up to 180 degrees due to the Angle Addition Postulate. So let's plug it in! x+65+79=180

Now you solve, x=180-79-65

x=36!

x=36 degrees

Answer 2

Option B

Explanation:

All interior angles of a triangle add up to 180°.

`79+65+x=180\\144+x=180 \\144-144+x=180-144\\\boxed {x=36}`

The missing angle is 36°.

Option B should be your correct answer.