Posted by Amber on Monday, June 4, 2012 at 7:43pm.
You'd better find another school -- if you've been on this for two months and your parents/home-school teacher won't help you.
This is a routine question, and would be an introductory type of question in a course of vector geometry.
The fact that " I been on this for TWO MONTHS* " (your grammar also needs improvement) illustrates my objection to "home schooling"
..... end of editorial...
I have a triangle with sides of 200 and 25 with a contained angle of 120°
let the side opposite your 120° angle be x
by the cosine law ....
x^2 = 200^2 + 25^2 - 2(200)(25)cos120°
...
x = 213.6
so the ground speed of the plane is 213.6 mph
The smallest angle would be opposite the 25 side, by sine law
sinØ/25 = sin120/213.6
sinØ = .10136..
Ø = 5.8
largest angle is 120°
smallerst is 5.8°
third angle is 54.2°
bearing of plane is W 5.8° S
Related Questions
Geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at ...
Geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at ...
geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at ...
Geometry - A plane is is flying 240 mph heading N60°E. The wind is blowing ...
trig - A plane is is flying 240 mph heading N60°E. The wind is blowing S30&...
trig - A plane is flying 225 mph heading South 25°West. The wind is blowing ...
Geometry/trig - A plane is flying due south at a speed of 300 mph. The wind is ...
word problem - An airplane is flying with a heading of 60 degrees east of north ...
Physics - A plane is heading due south with an airspeed of 211 mph. A wind from ...
Trig/Precal - An airplane flies on a compass heading of 90° at 310 mph. The ...
For Further Reading
