Patrick is using a weed killer to treat his circular lawn which a diameter of 12 metres. The weed killer instructions say to use 20 ml for every square metre of lawn to be treated. How much weed killer does he need to use? Give your answer to the nearest ml.

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Patrick is using a weed killer to treat his circular lawn which a diameter of 12 metres. The weed killer instructions say to use 20 ml for every square metre of lawn to be treated. How much weed killer does he need to use? Give your answer to the nearest ml.

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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area = pi*r^2 area = pi*6^2 area=36pi m^2 weed killer = (20 ml )(36 pi m^2)
720 ml
oops forgot the pi

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Other answers:

20*36*pi = answer in ml
diameter = 12m ==> radius = 6m area of circle = πr^2 = 3.14 * (6m)^2 = 3.14*36m^2 = 113.04m^2 for 1 m^2 area wed killer required = 20 ml so for 113.04m^2 area, weed killer required = (20 * 113.04) ml = 2260.8 ml = 2261 ml
technically 2262 if you use full pi
and dont round till the end like you're supposed to

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