shriya24
Answered

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find the measure of the exterior angle.

Find The Measure Of The Exterior Angle class=

Sagot :

Ylicow

Answer:

110°

Step-by-step explanation:

t+(t+10)+(t+20)=180

t+t+10+t+20=180

3t=180-10-20

3t=150

t=50°

t+20=50+20

=70

180-70=110°

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