Answers

2015-05-30T13:07:09+05:30
Fistly we will draw the figure i pole ab length=25 &ii pole cd length=20m
then on ii pole at its top we will draw a line perpendicular to i pole ce of length 12m
then we will join a & c so we get the triangle ace
now , applying Pythagoras theorem 
ac square= ae square+ ec square
ac square= 25 +144
ac=√169
ac=13cm
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