plz solve this with figure
Asked by achalgoel
| 18th Feb, 2010,
10:14: PM
Expert Answer:
In the lower trianlge, with hypotenuse OA, the anlge A is 180 - 90 - 30 = 60.
Hence the OAC = 180 - 30 - 60 = 90
Length of the pole = AC
sin 30 = 10/OA
OA = 20 m
AOC = 60-30 = 30
tan 30 = AC/OA
AC = OA tan 30 = 20x1/3 = 20
3/3 m = Length of pole.
Regards,
Team,
TopperLearning.
Answered by
| 19th Feb, 2010,
06:15: AM
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