Fractions of a circle
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Lesson details
Key learning points
- In this lesson, we will learn how to calculate the arc length for fractions of circles.
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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
Approximately how many times bigger is a circumference than a diameter?
1.59
3.41
4.15
Q2.
What is the circumference of this circle?
16 pi
4 pi
Q3.
What is the circumference of this circle?
16 pi
4 pi
Q4.
What is the value of the missing length if the circumference is 81 pi.
254
40.5
9
Q5.
What is the value of the missing length if the circumference is 36 pi.
133
36
6
6 Questions
Q1.
If the diameter of a circle is 20. What is the circumference?
10 pi
100 pi
Q2.
If the circumference of a circle is 14 pi. What is the radius?
14
28
Q3.
What is the arc length for a?
15.7
1800
5 pi
Q4.
What is the arc length for b?
20
20 pi
5
Q5.
What is the arc length for c?
15
7.5
Q6.
What is the arc length for d?
2
4