Question

In the figure at the right what is m < 1 if m < 3= 70 degrees

Answer 1

○=> Correct option :

$\color{plum}\tt\bold{(D) \: 70}$

○=> Steps to derive correct option :

Angle 1 and angle 3 are vertically opposite angles.

We know that :

▪︎ Vertically opposite angles are always equal.

Which means :

Angle 1 = Angle 3

Thus, the measure of angle 3 = 70°

▪︎Therefore, the correct option is (D) 70