Question

What is the approximate value of 1 radian in degree measure?

• A. ${27}^o{5}^{\prime }$
• B. ${57}^o{16}^{\prime }$
• C. ${180}^o$
• D. ${90}^o$

Answer 1

The correct option is B ${57}^o{16}^{\prime }$

From unit conversions,
$\pi rad={180}^{\circ }$
$1rad={\frac{180}{\pi }}^{\circ }={57}^{\circ }{16}^{\prime }$