If the angle of elevation of the Sun changes from 30 to 45 , the length of the shadow of a pillar decreases by 20 meters. The height of the pillar is

If the angle of elevation of the Sun changes from 30 to 45 , the le

1.	If the angle of elevation of the Sun changes from 30 to 45 , the length of the shadow of a pillar decreases by 20 meters. The height of the pillar is
A.	10 ( 3-1 ) m
B.	1 ( 3 + 1 ) m
C.	20 ( 3-1) m
D.	20 ( 3 + 1) m
Answer» C. 20 ( 3-1) m

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If the angle of elevation of the Sun changes from 30 to 45 , the length of the shadow of a pillar decreases by 20 meters. The height of the pillar is

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