In a right-angled triangle

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

Problem

In a right-angled triangle, the hypotenuse is 10 cm and one acute angle is

30^{\circ}

. What is the length of the side opposite this angle?\,(Take

\sin 30^{\circ}=\tfrac12

.) (a)

4\text{ cm}

(b)

8.66\text{ cm}

(c)

5\text{ cm}

(d)

5.77\text{ cm}