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Answer :

Melody08go

angle ACD = 180°-100°-30° (int angles, AC//BD)

= 50°

x° = 50°-30°

= 20°

Hence, x=20

Mhanifago

Answer:

  • x = 50

Step-by-step explanation:

The figure is a parallelogram. According to its property the adjacent angles are supplementary.

A and C are supplementary as adjacent angles.

Supplementary angles add up to 180°:

  • x + 30 + 100 = 180
  • x = 180 - 130
  • x = 50

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