Y2 - Circular measure

10 flashcards · Mathematics · by Nelly S

1. How to convert from degrees to radians?

   xo∗π/180=xcx^o * π/180=x^cxo∗π/180=xc

2. How to convert from radians to degrees?

   xc∗π/180=xox^c * π/180 = x^oxc∗π/180=xo

3. What is the area of a segment of a circle?

   θr2/2θr^2/2θr2/2

4. What is the Arc Length of a circle?

   θrθrθr

5. What is the area of a circle?

   πr2πr^2πr2

6. What is the circumference of a circle?

   2πr2πr2πr

7. What is the area of a triangle?

   1/2bcsin(A)1/2bcsin(A)1/2bcsin(A)

8. What is the small angle approximation for sin θ?

   θ

9. What is the small angle approximation for tan θ?

   θ

10. What is the small angle approximation for cos θ?

    1− θ2/2 1- θ^2/2 1− θ2/2