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primary 6 | Maths | Speed
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Rachel
Rachel

primary 6 chevron_right Maths chevron_right Speed chevron_right Singapore

Hello Pls Help

Date Posted: 1 year ago
Views: 241
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AC Lim
AC Lim
1 year ago
1 revolution = 2 × 22/7 × 35/2 = 110cm
110 = 1.1 m
200 revolution = 1.1 × 200= 220m
1 min → 220m
1/6 hr(10min) → 2200m

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Soh Xin Yi
Soh Xin Yi's answer
4 answers (A Helpful Person)
Answer is 2200m because the circumference of a circle is 2(pi)r, so you’ll need to divide 35cm by 2 to find the radius
Rachel
Rachel
1 year ago
Ty