Q. 35.0( 1 Vote )

A girl of height

Answer :


Here,


In the figure above,


FE is the height of the girl.


DC is the height of the lamp.


CE is the distance traveled by the girl in 4 seconds.


GE is the shadow of the girl after 4 seconds.


We need to find GE.


CE = 4 × 0.6 m


CE = 240 cm


In ΔGFE and ΔGDC


EFG = CDG by corresponding angles (DCFE)


GFE = GDC by corresponding angles (DCFE)


ΔGFE ΔGDC


( ΔGFE ΔGDC)




3×GE = 240 + GE


2×GE = 240


GE = 120 cm


GE = 1.2 m


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