Page 19 - 01-Yr5_Front cover-ccp.indd

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~=I•N:S-10~
PAGE 33

t§'il • Use your calculator to find the
missing measurements in
this chart.
• Show the answers to
2 decimal places.

rn ~

a The circumference of a circle is just over three times longer than the a 6·28 m b 12·56 m c 15·7 m d 25·12 m
diameter.
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b Three and a bit diameters can fit around the circumference of a circle.
a 21-qa cm b 31·4 cm c 40·82 cm d 62·8 cm
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a yes (diameter: 10 mm length: 31 mm)

b yes (diameter: 25 mm length: 75 mm) c d n
c yes (diameter: 40 mm length: 125 mm) 23·55m 7·5m 3·14
d no (diameter: 15 mm length: 60 mm) 27·32m 8·7m 3·14
e no (diameter: 60 mm length: 150 mm) 48·67cm 15·5cm 3·14

f no (diameter: 12 mm length: 35 mm) 84·78cm 27cm 3·14