Answer:
remaining side ≈ 26.4 m
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.
let x be the measure of the third side , then
x² + 13² = 29.4²
x² + 169 = 864.36 ( subtract 169 from both sides )
x² = 695.36 ( take square root of both sides )
x =
≈ 26.4 ( to 1 decimal place )
the remaining side is approximately 26.4 m