How long is the wire from the top of the telephone pole to the ground?

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.