Trigonometry.
Asked by khushal305
| 18th Feb, 2010,
03:52: PM
Expert Answer:
Dear Student
Tan 45 =1 = AB/BC ==> BC=h
DE=DC X sin 30= 0.5 mile
EC=DC cos 30=
3/2
Tan 60= (h-DE)/BE = (h-DE)/(BC-EC)=(h-0.5)/(h-3/2)= 3
(h-0.5)= (h-3/2)3
==> h(1-3)=(0.5-3/2)
==> h=(0.5-3/2) /(1-3)=1.366 mile
Regards
Team
Topperlearning.com
Answered by
| 18th Feb, 2010,
05:22: PM
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