Question

Trigonometry please help thank youuuu

Answer 1

x=6.3m

Explanation:

Let the opposite side be y in 2nd triangle.

tan 27° = y/9

=> tan 27° X 9 = y

∴ y = 4.585m ≈ 4.59m

cos 43° = y/x

=> cos 43° = 4.59/x

=> cos 43° X x= 4.59

=> x = 4.59/cos 43°

∴ x = 6.276m ≈ 6.3m (corrected to 1 dp)