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CBSE Class 7 Answered

Two poles of heights 6m and 11m stand on a plane ground.If the distance between their feet is 12m.Find the distance between their tops.
Asked by abhinavsinha317 | 09 Aug, 2018, 11:41: AM
answered-by-expert Expert Answer
begin mathsize 16px style Here comma pole space AB space equals space 6 straight m space and space pole space CD space equals space 11 space straight m space and the space distance space between space the space foot space of space poles space equals space BC space equals space 12 space straight m By space pythagoras space theorem space in space increment ADE comma space we space get AD squared space equals space AE squared space plus space DE squared space rightwards double arrow AD squared space equals space 12 squared space plus space 5 squared space rightwards double arrow AD squared space equals space 169 rightwards double arrow AD space equals space 13 Therefore comma space distance space between space top space of space poles space equals space 13 space straight m end style
Answered by Yasmeen Khan | 13 Aug, 2018, 02:27: PM

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