Question

The measures of the angles of a triangle are shown in the figure below. Solve for x. (3x)° 58° 80°

Answer 1

x=14

Explanation:

The angles inside a triangle add up to 180 degress all the time, therefore

58+80+3x=180

simplify

138+3x=180

subtract 138 from both sides of the equation

3x=42

divide both sides by 3

x=14