Question

How many obtuse angles does an obtuse angled triangle have?

• A. 0
• B. 1
• C. 2
• D. 3

Answer 1

The correct option is B 1

In an obtuse-angled triangle, exactly one angle measure more than 90 degrees.

Therefore number of obtuse angles in an obtuse angled triangle is 1.

In the following figure, $\angle B$ is the obtuse angle which is greater than 90 degrees. Other two angles are acute angles i.e., less than 90 degrees.