Question

# Two poles, of height 7m and 12m are 12 metres apart. If the top of the two poles are to be connected with a wire, find the length of the wire required.

A
11 m
B
12 m
C
13 m
D
14 m

Solution

## The correct option is C 13 mAccording to question, BC = 12 meters AB = AE - CD = 12 - 7 = 5 meters Using Pythagoras theorem, for ΔABC we get AB2+BC2=AC2 ⇒AC=√52+122           =13 m ∴ AC or the third side = 13 meters. ∴ The distance between the poles = 13 meters.Mathematics

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