What is the distance around a circle?
Arc Length/Circumference Circles (shortened, round 2DP)

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•
Mathematics
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Circumference
2.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
C = 2πr or C = πd, where r is the radius and d is the diameter.
3.
FLASHCARD QUESTION
Front
What is the arc length of a circle?
Back
The arc length is a portion of the circumference of a circle.
4.
FLASHCARD QUESTION
Front
How do you calculate the arc length of a minor arc?
Back
Arc Length = (θ/360) × C, where θ is the central angle in degrees and C is the circumference.
5.
FLASHCARD QUESTION
Front
What is the relationship between diameter and radius?
Back
Diameter = 2 × Radius.
6.
FLASHCARD QUESTION
Front
If the circumference of a circle is 20π km, what is the diameter?
Back
Diameter = 20 km.
7.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
Area = πr².
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