Question

Ratios of adjacent angles of a parallelogram are 4:5. Find all the angles of a parallelogram.​

Answer 1

Answer:

4x+5x = 180 adjacent angle

x =180/9 = 20

angles 4x = 4×20=80

angle 5x= 5×20=100

all angles are 80 , 100, 80 , 100

Answer 2

Answer:

We know that adjacent angles of a parallelogram are supplementary in nature.

let X be the rational constant!

so the angles are 4x and 5x respectively.

so now we know that the angles are supplementary

so 4 x + 5 x is equals to 180 degree

9 x is equals to 180 degree

x is equal to 20 degree

hence the angles are 4 x 20 and 5 x 20

hence the angles are 80 degree and 100 degree respectively.

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