Question

Find the missing side:
What’s the missing side

Answer 1

B

Explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 13² + 4² = 169 + 16 = 185 ( take the square root of both sides )

x =
`√(185)` ≈ 13.6 ( to 1 dec. place ) → B