Arc Length: Definition & Equation


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question 1 of 3

Identify the arc length formula.

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1. Find the arc length of a circle with diameter of 12 cm and a central angle of 30 degrees.

2. Find the arc length of a circle with a radius of 9 cm and a central angle of 22 degrees.

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About This Quiz & Worksheet

This quiz is going to test whether or not you can recall arc length formulas well enough to find a circle's arc length when given the radius, diameter and central angle.

Quiz & Worksheet Goals

When it comes to arc lengths, this quiz assesses how well you can:

  • Identify an arc length formula
  • Find an arc length when given a radius and central angle
  • Find an arc length when given a diameter and central angle

Skills Practiced

  • Reading comprehension - draw from the most important information found in the lesson on arc lengths
  • Problem solving - use this information to calculate the arc length of a circle
  • Distinguishing differences - compare and contrast radius and diameter when calculating the arc length

Additional Learning

If you wish to learn more about arc lengths, the lesson Arc Length: Definition & Equation can provide you with the following objectives:

  • Define arc length
  • Define circumference and understand the formula for it
  • Practice using the formula to find the arc length