Question

need answer please help me frnds

Answer 1

When shadows are cast by sun which is very very far (infinitely), they are parallel and triangles formed by shadow and vertical object are similar.

Therefore height of flagpole and its shadow will be proportional to building, whose height is say h and its shadow.

Hence, h24=46

or h=4×246=4×42416=4×4=16 meters

Answer 2

4/x = 6/24

6x = 24 x 4

x = 4 x x = 16m

16m is the height of the building