Year 8
Year 8
Revisiting area: Circles
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Lesson details
Key learning points
- In this lesson, we will be working out the area of circles when provided with a given radius.
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.
How do you work out the area of a triangle?
b + h x 2
b x h
Q2.
How do you work out the area of a rectangle?
(b x h)/2
b + h x 2
Q3.
A rectangle with a height of 3cm and a base of 4cm has the same area as a triangle with a height of 3cm and a base of _________.
10cm
4cm
6cm
Q4.
A compound shape is _____________________.
a shape with 5 sides
a shape with more than 6 sides
Q5.
A trapezium has _______________.
no parallel sides
two pairs of parallel sides
5 Questions
Q1.
Which of the following is larger than the area of a circle with a radius of 3cm?
20
27
9
Q2.
Which of the following is larger than the area of a circle with a radius of 2cm?
10
11
12
Q3.
Which of the following is smaller than the area of a circle with a radius of 4cm?
53
60
70
Q4.
True or false: A circle with a radius of 1cm has a larger area than a rectangle with a base of 1cm and a height of 3cm.
False
Q5.
True or false: A circle with a radius of 2cm has a larger area than a rectangle with a base of 2cm and a height of 6cm.
False