Question

please help me figure out the length of side AC!!!! i put the points at 16! i need this by the 21st :(

Answer 1

AC =
`√(89)` units²

Explanation:

Using Pythagoras' identity in the right triangle.

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

AC² = AB² + BC² = 5² + 8² = 25 + 64 = 89 ( take square root of both sides )

AC =
`√(89)` ≈ 9.43 ( to 2 dec. places )