A right-angled triangle has one acute angle of (25^ ) and the side adjacent to this…

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

Problem

A right-angled triangle has one acute angle of

25^\circ

and the side adjacent to this angle measures 12 cm. Calculate the area of the triangle, correct to one decimal place. (a)

30.4 \text{ cm}^2

(b)

65.1 \text{ cm}^2

(c)

33.6 \text{ cm}^2

(d)

27.6 \text{ cm}^2