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1. |
The angle of elevation of sun changes from 30 to 45 , the length of the shadow of a pole decreases by 4 meters, the height of the pole is (Assume 3 = 1.732) |
A. | 3.648 m |
B. | 5.464 m |
C. | 1.464 m |
D. | 9.464 m |
Answer» C. 1.464 m | |