Q5 of 168 Page 4

Two poles of heights 6 m and 11 m stand on a plane ground. If the distance between their feet is 12 m, find the distance between their tops.

Let AB and CD be the poles.

5.jpg


AB=PD= 6m, CD=11m


BD=AP=12m


CP=CD-PD


CP=11-6


CP=5


In ⊿ APC


AC2=CP2+AP2


AC2=122+52


AC2=144+25


AC2=169


AC=


AC= 13m


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