Question

Convert 2.5 radians to degrees.

• A. 130°
• B. 143.24°
• C. 180°
• D. 120°

Answer 1

Answer:

B. 143.24°

To convert radians to degrees, use:

$1 \text{ rad} = \frac{180}{\pi} \text{ degrees}$

Step 1: Apply formula

$2.5 \times \frac{180}{\pi}$

Step 2: Calculate

$= \frac{450}{\pi}$
$\approx \frac{450}{3.1416}$
$\approx 143.24^\circ$

Final Answer:

2.5 radians ≈ 143.24°