Triganometry Flashcards
1
Q
What is 1 radian in comparison to arc length?
A
1 radian is the angle in the middle of the circle that gives the arc length to equal 1 radius.
2
Q
What is the symbol for radian?
A
rad.
3
Q
1 radian is equal to…
A
57.3 degrees
4
Q
2pi multiplied by 1 rad is equal to…
A
360 degrees
5
Q
What is the equation of a circle with centre (0,0)
A
y squared + x squared = r squared
6
Q
Sin(-A) is equal to…
A
-sin(A)
7
Q
How do you convert radians to degrees?
A
Multiply by 180 and divide by pi.
