# trigonometry

Two planes leave the same airport at the same time. one flies 20 degrees east of north at 500 mph. the second flies 30 degrees east of south at 600 mph. how far apart are the planes after 2 hours?

1. 👍
2. 👎
3. 👁
1. I have a triangle with sides 1000 and 1200 with an angle of 130° between them.
Clearly a cosine law problem

d^2 = 1000^2 + 1200^2 - 2(1000)(1200) cos 130°
= ...
d = √...
=

let me know what you get.

1. 👍
2. 👎
2. SO this problem is a cosine law problem?

And if i did the problem right...

It should be 7276.412812...

I changed the degree (130 degrees) to radians

If i should not change the degree to radians... it should be 1822.498064...

1. 👍
2. 👎

## Similar Questions

1. ### Physics

A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north, to

2. ### Mathematics

An aeroplane leaves an airport A and flies on a bearing 035°for 1.5 hours at 600km/hr to airport B It then flies on a bearing 130° for 1.5hours at 400km per hour to an airport C calculate the distance from C to A and the bearing

3. ### math

An aeroplane flies due north from Ikeja Airport for 500km. It then flies on a bearing of 060 degrees for a further distance of 300km before overflying a road junction.Calculate a. The distance of the aeroplne from Ikeja Airport

4. ### Maths

An Aeroplane X Whose Average Speed Is 500km/h Leaves Kano Airport At 7:00am And Travels For 2 Hours On A Bearing 050 Degree. It Then Changes Course And Flies On A Bearing 120 Degree To An Airstrip A. Another Aeroplane Y Leaves

1. ### Maths

An aeroplane flies due north from Ikeja airport for 500km.if their flies on a bearing of 060 for a further distance of 300km before overflying a road junction . calculate the distance of the aeroplane from Ikeja airport when it

2. ### Pre Cal

An airplane leaves an airport and flies due west 150 miles and then 230 miles in the direction S 39.67 degrees W. How far is the plane from the airport at this time to the nearest mile.

3. ### trig

Two Airplanes leave an airport at the same time on different runways. One flies on a bearing of N66degreesW at 325 miles per hour. The other airplane flies on a bearing öf S26degreesW at 300 miles per hour. How far apart will the

4. ### algebra 1

a glider flies 8 miles south then 15 miles east then flies in a straight line back to the airport. what was the distance of the gliders last leg back to the air port

1. ### math

An airport passes over an airport and continues flying on a heading of N 70¡ãW for 3 km. The airplane then turns left and flies another 2 km until the airport is exactly due east of its position. What is the distance between the

2. ### Mathematics

an aeroplane leaves an airport, flies due north for 2hrs at 500km/h. It then flies on a bearing of 053 degree at 300km/h for 90mins. How far is the plane from the airport correct to 1 dp

3. ### Mathematics

An airport X is due north of another airport Y.An aeroplane leaving X flies due south for 380km and airport y is now 50km away.How far is X from Y

4. ### Pre-Calculus

After leaving an airport, a plane flies for 1.75h at a speed of 200km/h on a course of 100 degrees. The plane then flies for 2 hours at a speed of 250km/h on a course of 40 degrees. At this time, how far from the airport is the