Question

At a particular time, the shadow of pole and tower are 20m and 30m respectively If the hieght of tower is 48m,find the height of the pole​

Answer 1

Step-by-step explanation:

height of tower=48m. theta will be same in both cases so , Tan(theta)=h/20=48/30. h=32m

Answer 2

Question :

At a particular time, the shadow of pole and tower are 20m and 30m respectively If the hieght of tower is 48m,find the height of the pole

Answer :

Ratio of the Shadows = Ratio of heights

Let $x$ be the height of the pole. Then, 20 : 30 = $x:48$

$⇒ \dfrac{20}{30} = \dfrac{x}{48}$

$⇒x = \dfrac{20 \times 48}{30} = 32$

∴ The height of the pole is $32m$

Note that :

In a ratio both the terms should be of the same kind, but in a proportion, the first two should be of the same kind and the last two should be of the same kind .