Question

Can an obtuse triangle have a 90 degree angle?

Answer 1

No

Explanation:

Obtuse has an angle that is greater than 90 degrees. To be obtuse the angle must be 91 and up. Right triangles are 90-degree angles. Acute triangles have an angle that is less than 90. So, 89 and below.

I hope I answered your question correctly.

~LampteyJ