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20 questions
How do you convert from degrees to radians?
multiply by π/180
multiply by 180/π
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What are complementary angles?
Angles that add up to 2π
Angles that add up to π
Angles that are equal to each other
Angles who share the same terminal side
How do you convert from radians to degrees?
Multiply by π /180
Multiply by 180 / π
When it's 90 degrees go to the pool
Radians are radiant
How many seconds are in 1 degree?
60
3600
1/60
1/3600
What does the variable 's' stand for?
Arc length
Sector
Radius
Superman
What is the arc length formula?
s=rθ
r=θs
d=rt
E=mc2
When using the arc length formula, θ must be measured...
in radians
in degrees
in the same linear units as r
with a protractor
How do you find a coterminal angle? (Check all that apply)
± 360o
±2π
Subtract from π
Subtract from 180o
In which quadrant is -2 radians?
I
II
III
It's on the x-axis
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