Question

Find the measurement of ∠A from the given figure.

Answer 1

Answer:

Angle A is 50 degree

Step-by-step explanation:

As we know, the measure of exterior angle is equal to the sum of opposite interior angles.

115 = 65 + angle A

115 - 65 = Angle A

50 = Angle A .

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Answer 2

Step-by-step explanation:

angle ACD+ACB=180°(linear pair)

115°+angle ACB=180°

angle ACB=180°-115°

Angle C=65°

angleA + angleB + angleC =180°(angle sum of triangle)

angleA + 65° + 65°=180°

angleA = 180°- 130°

angleA = 50°