Question

ABC is a right-angled triangle. Angle B = 90. Angle A = 36. AB = 8.7 cm. Work out the length of BC. Give your answer correct to 3 significant figures.

Answer 1

Answer: About 6.321 cm

Step-by-step explanation:

$tan(x)=\frac{opposite}{adjacent}$

$tan(36)=\frac{x}{8.7} \\\\x=8.7*tan(36)=6.3209...$