Question

A 180° angle (straight line) is formed by two adjacent angles. One angle has a measure of (2x + 3) ° and the
other has a measure of (x - 6) °. What are the measures of the two angles that make up the straight line?
(1 point)

O 129° and 51°

O 186° and 88°

O 121° and 59°

125° and 55°

Answer 1

Let (2x + 3) + (x − 6) = 180.

3x − 3 = 180
3x = 183
x = 61

Angles: 2x + 3 = 2(61) + 3 = 125° and x − 6 = 61 − 6 = 55°.

Answer: 125° and 55°.