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January 28, 2015

January 28, 2015

Posted by **Barb** on Wednesday, November 28, 2012 at 11:43pm.

- trig -
**Steve**, Thursday, November 29, 2012 at 5:28ammeasured from the plane, the building subtends an angle of 9°

the distance d from the top of the building to the plane is found by

d/sin50° = 40/sin9°

d = 195.87

now, knowing d, the height h of the plane can be found:

(h-40)/d = sin31°

(h-40)/195.87 = sin31°

h = 40 + 195.87 sin31°

h = 140.88

h =

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