wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An electric pole is 10 m high. A steel wire tied to the top of the pole is affixed at a point on the ground to keep the pole upright. If the wire makes an angle of 45° with the horizontal through the foot of the pole, find the length of the wire.


Open in App
Solution

Draw a rough diagram and find the length of the wire :

Given,

Height of the electric pole 'AB'=10m

The angle made by steel wire with the ground (horizontal)θ=45°

Let the length of the wire =AC

In right-angled triangle ABC.

sin45°=ABAC12=10ACAC=102m

Hence the length of the wire is102m.


flag
Suggest Corrections
thumbs-up
12
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Calculating Heights and Distances
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon