Q. 34.2( 47 Votes )
As shown in figure 1.57, two poles of height 8 m and 4 m are perpendicular to the ground. If the length of shadow of smaller pole due to sunlight is 6 m then how long will be the shadow of the bigger pole at the same time?
Answer :
∵ the shadows are measured at the same time
⇒ angle of of elevation will be equal for both the pole
⇒ Δ PQR~Δ ABC ………(By AA Test)
⇒ 
⇒ BC
⇒ x = 
⇒ x = 12 m
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