In a right-angled triangle

MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

In a right-angled triangle, the side opposite an acute angle

\theta

5\,\text{cm}

and the hypotenuse is

13\,\text{cm}

. What is

\sin\theta

? (a)

\dfrac{5}{12}

(b)

\dfrac{5}{13}

(c)

\dfrac{8}{13}

(d)

\dfrac{12}{13}