Question

Work out the length of x.

Give your answer rounded to 1 decimal place.
x
9 m
14.5 m
The diagram is not drawn accurately.
Please help

Answer 1

x ≈ 17.1 m

Explanation:

Using Pythagoras' identity in the right triangle

x² = 9² + 14.5² = 81 + 210.25 = 291.25 ( take the square root of both sides )

x =
`√(291.25)` ≈ 17.1 m ( to 1 dec. place )