Question

A electric wire touch the ground it 7m from the foot of the pole. If the length of the wire from the top of the pole to the ground is 25m find the height of pole.......


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Answer 1

`\pink{★}`Height of the pole = BC

`\pink{★}`Distance from the foot of the pole and the point = AB = 7 m

`\pink{★}`length of the wire of one side = AC= 25m

`\pink{★}`∆ ABC is a right angled triangle ∠B = 90°

By Pythagoras theorem :

`\tt{AC^2 = BC^2+ AB^2}`

`\tt{25^2 = h^2+7^2}`

`\tt{625 = h^2+49}`

`\tt{h^2 =625-49}`

`\tt{h^2 = 576}`

`\tt{h = √(576)}`

`\tt{h= 24m}`

The height of pole is 24 m .