Arc Length and Central Angles
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating arc length?
s = θR²
s = Rθ
s = R/θ
s = θ/R
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the formula s = Rθ, what does 'R' represent?
Diameter
Radius
Central angle
Arc length
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the radius and the arc length?
Unrelated
Inversely proportional
Exponentially related
Directly proportional
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the arc length if the radius is doubled?
It remains the same
It quadruples
It halves
It doubles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must the central angle be measured in to use the formula s = Rθ?
Degrees
Radians
Gradians
Revolutions
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a central angle is given in degrees, what should you do before using the formula s = Rθ?
Convert it to arc minutes
Convert it to radians
Convert it to revolutions
Convert it to gradians
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example problem, what is the radius of the circle?
20 cm
10 cm
5 cm
15 cm
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