at a particular time, the shadow of a building and tree are 25 m 30 m respectively. if the height of the tree is 90 m, what is the height of the building.
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Step-by-step explanation:
I’m answering this because its been on top of my requests since I don’t know how long!
Lets call the height of the tower to be x metres.
Since it is measured at the same time, the shadow cast by any vertical object must be equally proportional.
The units(cm and m) don’t matter as this is a matter of proportion.
(Shadow/object) stick = (Shadow/object) tower
8/10 = 30/x
x = 10/8 multiplied by 30, which = 300/8
x = 37.5
Hence the height of the tower is 37.5 metres.
Correct me if I’m wrong.
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