Question

In a parallelogram ABCD , a=2x +20, b=3x - 30, find the value of x​

Answer 1

Answer:

38

Step-by-step explanation:

in a parallelogram, adjacent angles are supplementary

2x+20+3x-30 = 180

5x=190

x= 38

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Answer 2

Answer:

In parallelogram adjacent sides are equal to 180°.

In parallelogram ABCD, A andB are adjacet sides.

So A=2x+20+B=3x-30=180

2x+20+3x-30=180

5x-10=180

5x=180+10

5x=190

X=38°