2008
Mathematics
67ca00ce0c643c71d77dee1f
A student sitting on a tower 68 metres high observes his principal's car at the angle of depression of 20°. How far is the car from the bottom of the tower to the nearest metre?
A.
184 m
B.
185 m
C.
186 m
D.
187 m
Correct Answer: 187 m
Explanation
Tan 20° = 68m/x x tan 20° = 68 x = 68/tan20 = 68/0.364 x = 186.8 = 187m
Tan 20° = 68m/x x tan 20° = 68 x = 68/tan20 = 68/0.364 x = 186.8 = 187mTHIS WEEK's
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