Question

An isosceles triangle has a vertex angle of 100 degree what are the other angles?

Answer 1

Answer: 40
Explanation: The sum of the measures of the angles of the triangle is 180°. We know the vertical angle of the triangle i.e., 100°. Let the base angles be x and x since they have the same value. So the measure of both the base angles are x i.e., 40.

Answer 2

The other angle measures are 40 and 40 degrees respectively.

Explanation:

100 + 2x = 180

=> 2x = 80

=> x = 40

Since it is isosceles, the two remaining sides are equal, and therefore, they will have equal angles of 40 degrees.