Geometry and Trigonometry · Angles of a Triangle

Practice · Angles of a Triangle

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Question 1 of 5Solve it — one move at a time

An exterior angle of a triangle measures 110°. One of its two remote interior angles is 70°. Find the other remote interior angle.

Work through it one move at a time.

Set up

m\angle 3 + m\angle 2 = 110^\circ

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