⬛ ABCD is a parallelogram. the ratio of angle A and B of this paralleogram is 5:4. find the measure of angle B.
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Hello Friend !
The answer to your query is given below :
Let the angle A be 5x and angle B be 4x
Since the opposite sides of a parallelogram are parallel
Therefore the sum of two adjacent angles is 180°
⇒ ∠A + ∠B = 180°
⇒ 5x + 4x = 180°
⇒ 9x = 180°
⇒ x = 20°
Therefore ∠B = 4x = 4*20° = 80°
Hope this helps !
The answer to your query is given below :
Let the angle A be 5x and angle B be 4x
Since the opposite sides of a parallelogram are parallel
Therefore the sum of two adjacent angles is 180°
⇒ ∠A + ∠B = 180°
⇒ 5x + 4x = 180°
⇒ 9x = 180°
⇒ x = 20°
Therefore ∠B = 4x = 4*20° = 80°
Hope this helps !
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