1.

Find the value of x Angle ACD =1250Angle ABC =500​

Answer»

Answer:

An EXTERIOR angle of a triangle is EQUAL to the sum of the opposite INTERIOR angles.

HENCE, In this case ∠A and ∠B

So,

∠A+∠B=140

∘

as ∠A=∠B

or,2∠A=140

∘

∠A=∠B=70

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