b, c and d all equal 20
3
The radius of a circle is the distance from the centre of the circle to any point of the circumference
180 degrees
4
9cm2
0.8
6
400
10010
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b, c and d all equal 20
3
The radius of a circle is the distance from the centre of the circle to any point of the circumference
180 degrees
4
9cm2
0.8
6
400
10010
2
2100
250
100
4