Question

A man is it is 1.5 m standing 8 m from lamppost observed that is Shadow cash by the light is 2 metre in length how high is the lamb above the ground

Answer 1

In Triangle ABE and Triangle CDE,

Angle ABE = Angle CDE

Angle AEB = Angle CED

Triangle ABE is SIMILAR TO Triangle CDE

SO,

AB/CD = BE/DE

CD = 1.5m ; BE = 10m ; DE = 2m

=> AB/1.5 = 10/2

=> AB = 7.5m

Lamp is 7.5m above the ground.