Question

Is it possible to have an obtuse equilateral triangle?

Answer 1

No

Explanation:

The angles in an equilateral triangle are all 60 degrees.

`180/3 = 60`

since all three angles are equal divide the total degrees in an triangle by 180 by 3.

An obtuse angle is greater than 90 degrees.

60< 90 so an equilateral triangle can not have an obtuse angle.