Question

In a parallelogram ABCD, if ∠A : ∠B = 1 : 2 , then ∠A =
30
45
60
90​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

60⁰

Step-by-step explanation:

sum of corresponding angles in parallelogram is 180⁰

so if ∠A : ∠B = 1 : 2

let ∠A= x

then if∠B = 1 2x

so x + 2x = 180

x = 60⁰