Question

so i know that when you have an isosceles triangle has 2 equal sides, and the 2 angles created by those sides are also equal . if a question gives me the angle at the top ( which is 40 degrees ), how do i find the 2 equal angles at the bottom ?
Since the 3 angles of a triangle = 180

180 - 40 = 140
140/2 = 70
70 + 70 + 40 = 180
All of the angles in a triangle total 180, so 180-40=140, 140/2=70

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