Question

Joseph says the angles in equilateral triangle is looking at a 45 , 45 and 90 what went wrong?

Answer 1

Joseph saw an isoceles triangle/right angled triangle instead

Answer 2

An equilateral triangle is a triangle whose angles, are always the same. (60^ 60 ^ 60^). If the 90-degree angle is in there, it is not consistent with the other two angles (45^).