Question

in a parallelogram adjacent angles are the ratio of 4:5 find the angles (2cm)​

Answer 1

Step-by-step explanation:

Let the angles be 4x and 5x.

We know that the sum of the adjacent angles of a parallelogram is 180°.

So, 4x+5x=180°

9x=180°

x=180°÷9

x=20°

So the angles are 4×20°=80° and 5×20°=100°

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