Question

One of the interior opposite angles is 60. if the sum of another interior angle and the exterior angle is 180, find the magnitudes of unknown interior opposite angle and the exterior angle​

Answer 1

Step-by-step explanation:

By exterior angle property,

sum of 2 opposite interior angles=exterior angle

by the problem,

let's take unknown angle= X

60+X = 180

X= 180-60

x= 120

Answer 2

Other interior angle =60° (alternate interior angle)

The sum of an interior and exterior angle = 180°

Let exterior Angle be x

60°+x= 180°

x=180-60

x= 120°