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180 degrees - 100 degrees - 40 degrees = 40 degrees
There are 180 degrees in a triangle 180 -80 -60 = 40 degrees Answer: 40 degrees
Yes an isosceles triangle can have two equal acute base angles of 40 degrees and an apex angle of 100 degrees
A triangle on a concave surface.
isoselles triangleImproved Answer:-The third angle has to be 90 degrees so it is a right angle triangle.