Question

If figure ∠ ACD is an exterior angle

of ∆ ∠ = 50°, ∠ = 40° find the

measure of ∠ ACD​

Answer 1

Answer:

we know that exterior angle is equal to sum of opposite angles

so if angle 50⁰ and angle 40⁰ are opposite angles then

angle ACD = 50⁰ +40⁰= 90⁰

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