Question

one of the exterior angle of a triangle is 130 degrees and one of the interior angles is 60 degrees,find the other interior opposite angle

Answer 1

Answer:

Step-by-step explanation:

As the opposite interior angles are equal to exterior angle

Thus, 60 + X = 130

X= 130 - 60= 170

Thus the other interior angle will be of 170 °

Answer 2

Answer:

70 °

Step-by-step explanation:

so one angle < B = 60°

Exterior angle = 130 °

so ther side of exterior angle < C = 50 °

( as exterior angle + other angle = 180° )

now < A + < B + < C = 180

so, < A = 180 ° - 60 ° + 50°

< A = 180 ° - 110°

< A = 70 °