Question

an electric pole is 4 metre a steel wire is tied from its top to a point on the ground at a distance of 3 metre . from the foot of the pole, what is the length of the wire.

Answer 1

4^2 + 3^2 = 5^2
length of wire 5m

Answer 2

Let AB be the height of the electric pole and AC be the length of the wire.
In rt.△ABC,
cosec 45° = AC/AB
AC = AB cosec45°
= 10√2 m
= 10 × 1.414 m
= 14.14 m
Therefore the length of the wire is 14.14 m.