Foundation
Find the Area of a Circle
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Lesson details
Key learning points
- In this lesson, we will investigate how to find the area of a circle. We will practise finding the area of circles and semicircles when given either the radius or the diameter.
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4 Questions
Q1.
Rearrange the formula that finds the circumference of a circle to make the ‘diameter’ the subject.
A
B
C
Q2.
The circumference of a circle is 35πcm. What is length of the radius?
A
B
C
Q3.
The circumference of this circle is 30cm. What is the diameter to 3 significant figures?
A
C
D
Q4.
The circumference of this circle is 30cm. What is the radius to 3 significant figures?
B
C
D
4 Questions
Q1.
Find the area of the circle in terms of π.
A
B
D
Q2.
Find the area of the circle to three significant figures.
A
C
D
Q3.
Find the area of the circle to 3 significant figures.
A
B
D
Q4.
Find the area in terms of π.
A
C