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Find the measure of the exterior angle.

Find The Measure Of The Exterior Angle class=

Sagot :

Xairantidn
the sum of all interior angles must be 180, we know that angle t increases by 10 therefore t is equal to 50° and angle t + 20° is equal to 70°

next we can see that the two angles form a 180° angle meaning the measure of the exterior angle is 180° - 70° or 110°
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