Question

Based on this picture, if ∠2 = 55˚then what is m∠4?
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Answer 1

Angle 4 is 125°

Explanation:

A straight line has an angle of 180 °, therefore an equation can be set up to solve for angle 4

If angle 2 is 55°

angle 2 + angle 4 = 180°

55° + angle 4 = 180°

Subtract 55 from both sides

angle 4 = 125°