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Lesson details

Key learning points

  1. In this lesson, we will learn how to calculate the arc length for fractions of circles.

Licence

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
Correct answer: 3.14
3.41
4.15
Q2.
What is the circumference of this circle?
An image in a quiz
16 pi
4 pi
Correct answer: 8 pi
Q3.
What is the circumference of this circle?
An image in a quiz
16 pi
4 pi
Correct answer: 8 pi
Q4.
What is the value of the missing length if the circumference is 81 pi.
An image in a quiz
254
40.5
Correct answer: 81
9
Q5.
What is the value of the missing length if the circumference is 36 pi.
An image in a quiz
133
Correct answer: 18
36
6

6 Questions

Q1.
If the diameter of a circle is 20. What is the circumference?
10 pi
100 pi
Correct answer: 20 pi
Q2.
If the circumference of a circle is 14 pi. What is the radius?
14
28
Correct answer: 7
Q3.
What is the arc length for a?
An image in a quiz
15.7
1800
Correct answer: 5
5 pi
Q4.
What is the arc length for b?
An image in a quiz
Correct answer: 10
20
20 pi
5
Q5.
What is the arc length for c?
An image in a quiz
15
Correct answer: 22.5
7.5
Q6.
What is the arc length for d?
An image in a quiz
2
Correct answer: 3
4