Friday

February 27, 2015

February 27, 2015

Posted by **Amber** on Monday, June 4, 2012 at 7:43pm.

1. What is the ground speed of the plane?

2. When you solve the triangle, what is the smallest angle?

3. What is the largest angle of the triangle?

4. What is the remaining angle?

5. What is the bearing of the plane?

Please help, I been on this for TWO MONTHS* and my teacher won't help me out. (I'm home-schooled.)

- Geometry -
**Ms. Sue**, Monday, June 4, 2012 at 7:44pmYou'd better find another school -- if you've been on this for two months and your parents/home-school teacher won't help you.

- Geometry -
**Reiny**, Monday, June 4, 2012 at 8:35pmThis 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

**Answer this Question**

**Related Questions**

Geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at 25 ...

Geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at 25 ...

geometry - A plane is heading west at 200 mph. The wind is blowing S30°W at 25 ...

Math - Can someone show me how to solve these questions. A plane is is flying ...

Geometry - A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E...

trig - A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at ...

Geometry/trig - A plane is flying due south at a speed of 300 mph. The wind is ...

Math - Me, again... Please help me. Thank you. Assume a plane is flying directly...

geometry - A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E...

trig - A plane is flying 225 mph heading South 25°West. The wind is blowing ...