shriya24 shriya24

03-06-2021
Mathematics

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find the measure of the exterior angle.

find the measure of the exterior angle class=

Respuesta :

03-06-2021

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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