SOLUTION: An aeroplane flies 400km from a point O on a bearing of 025 degrees to a point X,and it then flies 700km on a bearing of 080 degrees to arrive at y
(1) Using a scale of 1cm to rep
Algebra ->
Trigonometry-basics
-> SOLUTION: An aeroplane flies 400km from a point O on a bearing of 025 degrees to a point X,and it then flies 700km on a bearing of 080 degrees to arrive at y
(1) Using a scale of 1cm to rep
Log On
Question 1207688: An aeroplane flies 400km from a point O on a bearing of 025 degrees to a point X,and it then flies 700km on a bearing of 080 degrees to arrive at y
(1) Using a scale of 1cm to represent 100km,draw accurately the positions of the points
(2)Find the distance of y from O
(3)Find the bearing of y from O Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! We can calculate angle OXY by alternate angles and triangle property
Angle OXY = 125 deg
Use cosine law
c=
OY =
In triangle OXY
Using sine rule
Sin 125 degrees /985.496 = x/700
Sin 125 degrees *700/ 985.496 = sin (x) =0.5814
x = 35.529 deg
Angle ZOY = 25+35.52= 60.52 deg approx
.
.