A Philips's answer to Anugerah's Primary 6 Maths Measurement Singapore question.
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Circumference of the wheel= 1 revolution
22/7 X 21 = 66cm
66 X 15 = 990cm
990 X 8 = 7920cm (total distance)
22/7 X 14 = 44cm ( 1 revolution) (1 smaller circle)
7920 ➗ 44 = 180 revolutions
22/7 X 21 = 66cm
66 X 15 = 990cm
990 X 8 = 7920cm (total distance)
22/7 X 14 = 44cm ( 1 revolution) (1 smaller circle)
7920 ➗ 44 = 180 revolutions
Date Posted:
4 years ago
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