Question

If the two adjacent angles of a parallelogram are (3x + 20)0

and ( x + 40 )

0

,

then find the value of x.​

Answer 1

Answer:

3x+20+x+40=180°(sum of adjacent angles)

=)4x=180°-60°

=)4x=120°

=)x=30°

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Answer 2

Answer:

Since the adjacent angles of a parallelogram are supplementary

Therefore

3x+20°+x+40°=180°

4x+60°=180°

4x=120°

x=30°

Hope it helps