Sine / Cosine Rule Flashcards
1
Q
Sine to find SIDE
A
a/SinA = b/SinB = c/SinC
2
Q
Sine rule to find ANGLE
A
SinA/a = SinB/b = SinC/c
3
Q
Co-sine rule SIDE
A
a^2 = b^2 + c^2 x -2ab x cosA
4
Q
Co-sine rule ANGLE
A
A= cos^-1 (b^2+c^2 - a^2 / 2xbxc)
5
Q
Area of triangle
A
Area = 1/2 x a x b x sinC
