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Sine and Cosine Rule

Author: Mansourfar Amirali
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. The formula area of a triangle.
1. Cos x =
2. Sin x =
3. 2 angles 1 side
4. The formula of the Cosine Rule.
5. Opposite angles in a cyclic quadrilaterals add up to...
6. Tan x =
7. This formula of the Sine Rule is used when you are finding the unknown side.
8. This formula of the Sine Rule is used when you are finding the unknown angle.
9. Only 2 sides
10. You have 2 sides and 1 included angle.
11. Included Angle
12. An easy way to remember Sine, Cosine and Tangent formula%27s.
13. Sine Rule
14. Definition of: SOH CAH TOA
15. Tan^-1

Answers:
0. Cosine Rule
1. a = b^2 x c^2 -2bc x Cos A
2. SOH CAH TOA
3. Adjacent ------------------ Hypotenuse
4. 2 sides and 1 angle.
5. Sine A Sine B -------- = --------- a b
6. = 180
7. a b ----- = ------ Sin A Sin B
8. Sin x = Opp/Hyp Cos x = Adj/Hyp Tan x = Opp/Adj
9. Pythagoras Theorem
10. Inverse Tan
11. Sine Rule
12. Opposite ----------------- Hypotenuse
13. 1/2ab x cos C
14. Opposite --------------------- Adjacent
15. The angle between two known sides.
.