The angle of depression from the top of the light house to two ships lying along the same line on the east of the light house at a given instant are 20 & 50 degrees respectively. If the top of the light house is measured at 30 m above the sea level. What is the distance between the two ships at that instant?
A. 26.13m
B. 25.96m
C. 24.83m
D. 22.17m
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