Hello, kasak!

I'll get you started . . .

An aircraft flies 400km from a point on a bearing of 25° to

and then 700km on a bearing of 80° to arrive at .

a) How far north of is ?

b) How far east of is ?

c) Find the distance and bearing of from ?Code:P Q o B : : * | : : * | : : * | : : 80° * | : A: * 10° | : o - - - - - - - - + C : *| | :25°* | | : * | | : * | | :*65° | | o - - + - - - - - - - - * O D E

The plane starts at on a bearing of 25°: .

. . The distance is 400 km: .

Then it is on a bearing of 80°: .

. . The distance is 700 km: .

(a) We want the distance

In right triangle ADO: .

. . Since

In right triangle BCA: .

Therefore: . km.