Question

ABCD is a parallelogram. The ratio of angle A and angle B is 7:2. Find the measure of angle A​

Answer 1

Answer:

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Answer 2

Answer:

∆A : ∆B = 7:2

let ∆A = 7x

let ∆B = 2x

∆A + ∆B = 180° { adjacent ∆5}

7x + 2x = 180°

9x = 180°

x = 180°/9

x = 20°

∆a 7x = 140° , ∆b 2x = 40°

Step-by-step explanation:

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