Question

In a right-angled triangle, the angles other than the right angle are:

• A. Obtuse
• B. Right
• C. Acute
• D. Straight

Answer 1

The correct option is C

Acute

Explanation for correct option:

Find the measure of the other two angles of the right-angled triangle.

We know that the sum of all the interior angles of any triangle must be $180°$.

In a right-angled triangle, the measure of one angle is $90°$.

Then the sum of the remaining two angles are $180°-90°=90°$.

Since, the sum of two angles is $90°$, then the measure of each angle will be less than $90°$, or acute.

Thus, a right triangle has two acute angles other than the right angle.

Hence, $\mathrm{Option}\left(\mathrm{C}\right)$ is the correct answer.