What is the formula for calculating the length of an arc?

Understanding Arc Length and Sector Area

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Radius times angle in radians
Diameter times angle in degrees
Diameter times angle in radians
Radius times angle in degrees
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you convert 60 degrees to radians?
Multiply by π/180
Multiply by 180/π
Divide by π/180
Divide by 180/π
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the length of the arc when the radius is 3 and the angle is 60 degrees?
2π
π
3π
π/2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radian measure of 120 degrees?
π/3
π/2
3π/2
2π/3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius is 2 and the angle is 120 degrees, what is the length of the arc?
4π/3
2π/3
π/3
3π/2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the length of an arc when given the angle in degrees?
Add the angle to the radius
Multiply the angle by the radius
Convert the angle to radians
Divide the angle by the radius
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between degrees and radians?
180 degrees equals π radians
360 degrees equals π radians
90 degrees equals π radians
180 degrees equals 2π radians
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