Page 123 - Math SL HB Sem 1

CIRCULAR FUNC'TIONS AND TRIGONOMETRY

Example 4: A ship ,eaves port and travels 65 nautical miles onabearingofN36"ts.
It
then changes course and sails I l2 nautical miles on a bearing of S I 5 " E.
How far is it from port at this point?

'fhc
arca of a trianglc
f
Area of a triangle = bcsina- f absinC- l acsinB

Example l: Calculate the area of triangle ABC if a = 5 cm, b _
:7cm 6 cm and
c

4-48