spongebob5391 spongebob5391

30-09-2018
Mathematics

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i need help with #20

i need help with 20 class=

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Inray3610 Inray3610

30-09-2018

what you did is set πr² equal to A then divide the π by both sides so it will cancel on the right side and keep A over π then square root r to cancel the exponent of 2

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