Question

shadow if 7.5 meter high pole is 5 meter If the shadow of a tree is 10 meter then find the height of that tree

Answer 1

7.5 into 10 divided by 5 is equal to 15 is the answer

Answer 2

Hey


Let me explain the concept used in it .
At a same time, the inclination of sun rays on an object is same . So , angle made by sun is same .

Now ,

Shadow 1 = 5 m
Height 1 = 7.5 m

Shadow 2 = 10 m
Height 2 = h m

Ummm ,
One angle is 90° and another is same ( that is of sun ) .
So , triangles are similar.

Shadow1 /Height 1 = Shadow 2 / Height 2
=> 5 / 7.5 = 10 / h
=> 1 / 7.5 = 2 / h
=> h = 7.5 * 2
=> h = 15 m

thanks :)

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