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21.12.2020 •
Mathematics
Brenda has a circular garden of radius 21 m . She ran round the garden twice .what distance did she cover
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Ответ:
Brenda ran 263.76 metres.
Step-by-step explanation:
The circumference of a circle is two times pi times its radius. Brenda rand that twice, so we need:
2 × 2πr
= 4πr
= 4 × 3.14 × 21m
= 263.73m
Ответ:
Its 6
Step-by-step explanation: