clear case of the cosine law.
You must have studied this in class or else how could they expect you to do it ?
f^2 = 13.5^2 + 18.2^2 - 2(13.5)(18.2)cos(60 degrees)
= .....
In angle DEF, d=13.5 cm, e=18.2 cm and F = 60 degrees
Determine the measure of f to the nearest tenth of a centimetre.
I know the answer is 16.4 cm but how do I get it
2 answers
Thank you!! :)