Question

A vertical stick 40 m long casts a shadow 20 m long on the ground. At the same time,a..............tower casts a shadow 50m long
on the ground.

plss it's argent please ​

Answer 1

Step-by-step explanation:

ANSWER

In ΔABC & ΔADE

∠BCA=∠DEA=90

o

[Each are at 90

o

to the ground]

∠BAC=∠DAE [common angle]

∠CBA=∠EDA [∵ the sum will cast light a equal angles]

Hence, by AAA, ΔABC∼ΔADE

⇒

CA

BC

=

EA

DE

⇒

10

20

=

50

DE

⇒DE=100

∴ The height of the tower is 100m.

Answer 2

Step-by-step explanation:

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