what is m∠pqr in radians? 63°

Explanation:

Step1: Recall degree - radian conversion formula

To convert degrees to radians, use the formula $\text{radians}=\frac{\pi}{180}\times\text{degrees}$.

Step2: Substitute the given degree value

We have $\text{degrees} = 63^{\circ}$, so $\text{radians}=\frac{\pi}{180}\times63$.

Step3: Simplify the expression

$\frac{\pi\times63}{180}=\frac{7\pi}{20}$ (divide both 63 and 180 by 9).

Answer:

$\frac{7\pi}{20}$ radians