How can an isosceles triangle have a right angle?

2 Answers
Apr 26, 2018

If the other two angles are 45^@ each.

Apr 26, 2018

There's only one solution to A=90^circ, quad B=C quad and A+B+C=180^circ and that's B=C=45^circ, so the 45^circ, 45^circ,90^circ right triangle is isosceles too.

Explanation:

If people's homework are any indication, you'll spend a whole year of trig studying the 45^circ, 45^circ, 90^circ triangle and the 30^circ, 60^circ, 90^circ triangle.