loci, bearings and further trig Flashcards
1
Q
What is the sine rule for finding a side?
A
a/Sin(A) = b/Sin(B)
2
Q
What is the sine rule for finding an angle?
A
Sin(A)/a = Sin(B)/b
3
Q
What is the cosine rule for finding a side?
A
a² = b² + c² - 2bc Cos (A)
4
Q
What is the cosine rule for finding an angle?
A
Cos (A) = b² + c² - a² / 2bc
5
Q
What is the formula for area of a triangle (when you have 2 sides and the angle between them)?
A
a = 1/2 ab Sin (C)
