1.) An obtuse triangle is (always sometimes, or never) a right triangle. 2.) A right triangle is (always, sometimes, or never) an equilateral triangle.

Question

Geometry math help please. My teacher is not a very good teacher and I still don't understand any of it.

Answer 1

An obtuse angle is one that measures more than 90°. 

A right triangle has a 90° angle.

The sum of the three angles of a triangle equal 180°.

A triangle cannot have two 90° angles, there an obtuse triangle is NEVER a right triangle.

 

In an equilateral triangle, the three angles are equal. Since the three angles total 180°, they are each 60°.

So a right triangle is NEVER an equilateral triangle.