In a right triangle, one of the acute angles measures $60°$. What is the measure of the other acute angle?

• A. $60°$
• B. $30°$
• C. $90°$
• D. $45°$

Answer: (B)

Verified step by step guidance

1. Recall that the sum of the interior angles in any triangle is always \$180^\circ$.
2. In a right triangle, one angle is always \$90^\circ$ because it is a right angle.
3. Given one of the acute angles is \$60^\circ\(, use the angle sum property to find the other acute angle by subtracting the sum of the known angles from \)180^\circ$.
4. Set up the equation: \$90^\circ + 60^\circ + \text{other acute angle} = 180^\circ$.
5. Solve for the other acute angle: \(\text{other acute angle} = 180^\circ - 90^\circ - 60^\circ\).