Question

One of the base angles in an isosceles triangle is 75 degrees, then its exterior angle is
A. 105 degrees
B.75 degrees
C. 285 degrees
D, 30 degrees

Answer 1

Answer:

105 degrees

Step-by-step explanation:

Supplementary angles add up to 180 degrees.

You just gotta subtract your given (in your case 75) from 180 to get your answer my guy

Answer 2

Answer: 105

Triangle sum theorem 180-75=105