Question

∠ is an exterior angle of ∆ , ∠ = 40°,∠ = 70°?

Find the measure of∠. ​

Answer 1

Answer:

By the angle sum property,

40+70+x=180

110+x=180

Therefore, 180-110=x

70=x

Answer 2

Answer:

110°

Step-by-step explanation:

exterior angles = sum of opposite angles of triangle

➡️ angle A + angles B= angles ACD

➡️ 70°+40°= angles ACD

➡️110° = angle ACD

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