Which of the following pairs represents equal angle measures?

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Which of the following pairs represents equal angle measures? (a)

60^{\circ}

and

\dfrac{\pi}{4}

(b)

75^{\circ}

and

\dfrac{5\pi}{12}

(c)

135^{\circ}

and

\dfrac{3\pi}{5}

(d)

150^{\circ}

and

\dfrac{7\pi}{12}