2. In the evening the thadow of an object h very long due to the low
position of the sun. A 20 m high lamp post mares a 99 m long shadow.
What is the distance from the top of the pole to the top of its shadow
A. 97 m
B. 101m
C78m
D. 119 m
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Answer:
Length of the pole=20m
Length of the shadow= 99m
So it would give us a triangle as shown in the figure.
By Pythagoras theorem
AB^2= BC^2 +AC^2
AB^2 = 99^2 + 20^2
AB^2 = 9801 + 400
AB^2 = 10201
AB= √10201
AB = 101
• The distance between the tip of the pole and tip of the shadow is 101 metre
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