The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45 to 30 . Then the height of the tower is

The length of the shadow of a vertical tower on level ground increases

1.	The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45 to 30 . Then the height of the tower is
A.	5 ( 3 + 1 ) meters
B.	5 ( 3 - 1 ) meters
C.	5 3 meters
D.	$$ {5 over 3} meters $$
Answer» B. 5 ( 3 - 1 ) meters

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The length of the shadow of a vertical tower on level ground increases by 10 meters when the altitude of the sun changes from 45 to 30 . Then the height of the tower is

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