Question

3. The measures of the three angles of a triangle a

are 20°, 115, and x. What is the value of x?

Answer 1

The value of x is 45°.

Step-by-step explanation:

In a triangle, the sum of the measures of the three angles is always 180°. Therefore, we can set up an equation:

20° + 115° + x° = 180°

Combine like terms: 135° + x° = 180°

Subtract 135° from both sides: x° = 45°

Therefore, the value of x is 45°.

Learn more about Triangle angles