Question

What is the value of x?
50"
1009
A. 300
B. 1500
C. 1000
D. 500

Answer 1

A. 30°

Explanation:

The interior angles of a triangle ALWAYS add up to 180°. So, for this, you would use 100 + 50 + x = 180 and solve for x :)

Answer 2

A. 30°

General Formulas and Concepts:

Pre-Alg

• Equality Properties

Geometry

• All angles in a triangle add up to 180°.

Explanation:

Step 1: Set up equation

x + 100 + 50 = 180

Step 2: Solve for x

1. Combine like terms: x + 150 = 180
2. Subtract 150 on both sides: x = 30°