Question

How many obtuse angles can a right triangle have?

Answer 1

None.

Explanation:

A triangle has three angles that add up to `180^@`. An obtuse angle is greater than `90^@` and less than `180^@`. An acute angle is less than `90^@`.

A right triangle has a right angle, which is `90^@`, which means that the sum of the other two angles is `90^@`. This means that the other two angles cannot be greater than `90^@`.