Question

A girl of height 150cm is standing in front of a building whose height is 9cm if the length of shadow of the girl is 90cm find the distance between the girl and the building

Answer 1

Answer:

the distance between the girl and the building = 450 cm

Step-by-step explanation:

Let assume Height of building = 9m  not 9 cm

then height of building = 900 cm

Girl height = 150 cm

Shadow of girl = 90 cm

Let say Distance between girl & building = D cm

then Distance between Building and shadow end point = D +  90 cm

Using Similar triangle property or using Tan of Angle

=> 900 / (D + 90)  = 150/90

=> D + 90 = 900 * 90 / 150

=> D + 90 = 540

=> D = 450

the distance between the girl and the building = 450 cm