Question

Find the unknown side:
V
u
2.5
85
26

Answer 1

u ≈ 5.7

Explanation:

Using the Sine rule in Δ TUV, that is

`(t)/(sinT)` =
`(u)/(sinU)` , substitute values

`(2.5)/(sin26)` =
`(u)/(sin85)` ( cross- multiply )

u × sin26° = 2.5 × sin85° ( divide both sides by sin26° )

u =
`(2.5sin85)/(sin26)` ≈ 5.7 ( to 1 dec. place )