Question

If a=120 degrees find the measures of b,c, and d

Answer 1

<b=120°,<c=60° & <d=60°

Explanation:

Here,

given that <a=120°

<a is vertically opposite to <b

We know,vertically oppposite angles are equal

So,<a=<b=120°

<a & <c lies on a straight angle.

So,<c=180°-120° (Sum of two angles on a straight angle is 180°)

<c=60°

Again,<c is vertically opposite to <d.

So,<d=60°.