In a right triangle

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

Problem

In a right triangle, the sides forming the right angle are 7 cm and 24 cm. Find

\cos \theta

, where

\theta

is the angle opposite the side of length 7 cm. (a)

\dfrac{7}{25}

(b)

\dfrac{7}{24}

(c)

\dfrac{24}{25}

(d)

\dfrac{12}{13}