In a right triangle, if one of the acute angles measures $24°$, what is the measure of the other acute angle?

• A. $76°$
• B. $66°$
• C. $38°$
• D. $48°$

Answer: (B)

Verified step by step guidance

1. Recall that in a right triangle, the sum of the three interior angles is always 180 degrees.
2. Since one angle is a right angle, it measures 90 degrees.
3. The sum of the two acute angles must therefore be 180° - 90° = 90°.
4. Given one acute angle measures 24°, subtract this from 90° to find the other acute angle: \$90^{\circ} - 24^{\circ}$.
5. The result of this subtraction gives the measure of the other acute angle.