Circles Start Thinking
How could each of these objects be used to measure the size of a circle? Which do you think is the least useful?
Let’s Learn Together
Let’s think about the different things circles have.
1
A radius
An area
A circle has
A diameter
A circumference
A centre
A circle has a radius of 4 cm. What is the diameter?
2
diameter
radius
Diameter = radius × 2 Diameter = 4 × 2 = 8 cm.
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01/12/2021 14:55
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