Year 8
Fractions of a circle
Slide deck
Download slide deck
Lesson details
Key learning points
- 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.
Video
Share with pupils
Loading...
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