Answer:
D
Explanation:
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is
UW² = UV² + VW²
x² = 9² + 40² = 81 + 1600 = 1681 ( take square root of both sides )
x =
= 41
hypotenuse UW = 41