Question

Use the adjacent figure, to find angle x and its supplement.

Answer 1

In the given fig.
x + 2x + 3x + 4x = 180° ......(Straight angle)

⇒ 10x = 180°

⇒ x = `(180°)/10` = 18°

∴ x = 18°

Its supplymentary angle = 180°− 18° = 162°