Respuesta :

Answer:

34.64 feet.

Step-by-step explanation:

A wire from the top of a telephone pole to a point on the ground 20m from the pole is 40m long.

Step-by-step explanation:

by using Pythagoras law

let x=?

x²=20²+5²

x²=425

x=√425=20.61ft

21 ft long the wire from the top of the telephone pole to the ground.