Question

In a parallelogram ABCD, ∠D=1350∠D=1350, Determine the angles measures of ∠Aand∠B

Answer 1

Answer:

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Answer 2

Answer:

Answer is, angle A = 135⁰

and angle B = 45⁰

Step-by-step explanation:

As ABCD is a parallelogram

AB = CD

Therefore, angle A = angle D = 135⁰

and angle B = angle C

angle A + B + C + D = 360⁰

135 + B + B + 135 = 360⁰

2B + 270⁰ = 360⁰

2B = 360 - 270 = 90⁰

B = 90 ÷ 2 = 45⁰