Question

What is the answer to this question?

Answer 1

≈ 3.9 miles

Explanation:

The third angle in the triangle is

180° - (53 + 78)° = 180° - 131° = 49°

Using the Sine rule in the triangle with distance from 2 being x, then

`(3)/(sin49)` =
`(x)/(sin78)` ( cross- multiply )

x × sin49° = 3 × sin78° ( divide both sides by sin49° )

x =
`(3sin78)/(sin49)` ≈ 3.9 ( to the nearest tenth )