Answer :
Answer:
Step-by-step explanation:
Important things to know:
The sum of the angles in any triangle is equal to 180º
An isosceles triangle has two angles that are equal in measurement, while the third one is not
Answer:
40 degrees.
Step-by-step explanation:
As it has 2 equal sides it is an isosceles triangle and it also has 2 equal angles. The other angle cannot be 100 degrees because that is greater than 180 degrees, so the two equal angles must sum to 180 - 100 = 80 degrees.
Each angle measures 40 degrees.