Fractions of a circle

Fractions of a circle

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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

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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

Lesson appears in

UnitMaths / Circles