Q10 of 56 Page 135

The shadow of 12 cm long vertical rod on the ground is 8 cm long. If at the same time the length of the shadow of a tower is 40 m, then the height of the tower will be:


The tower and the vertical rod are perpendicular to the ground and thus make a triangle like the above figure.


height of tower(AD) = 40 m


height of rod(EF) = 12 m


In ΔOEF & ΔOAD,


EF||AD




⇒ AD = 60 m

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