How to find the Area of a Circle #shorts

Learn how to find the area of a circle.The area of a circle uses the formula is pi times radius squared.

[RolandCasona]

This is a good idea i understand you sir🎉

[RobertShaverOfAustin]

*Thanksgivings Math:* I have two pumpkin pies that are the same thickness. I want to cut them up so that each slice has the same mass (same surface area should work) while keeping the slices a reasonable portions. The answer for each pie should be an integer number of slices, meaning no odd parts left over. One pie is 12 inches, the other is 8 inches. For extra credit, include a 9 inch size.

[fuunds]

thanks sir now I hopefully won’t fail my exams 👍

[Nik-v]

Area of a Circle

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You have learned from the previous lesson that the distance around the circle is the Circumference. Meanwhile,
if we want to know the space
covered by the interior of the circlez we refer to it as the area. The area of a Circle with
radius r is given by the formula:

A = r × r × π

Or

A = π × r².

To know if the street sweeper would be able to use the cover that she found in their stock room, we have to compare the area of the manhole to the area of the cover.

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Given that the diameter of the manhole is 60 Cm, we know that the radius is 30 cm.

A = r × r × π
= 30 cm × 30 cm × π
= 30 cm × 30 cm × 3.14
= 2826 cm²

The area of the open manhole is 2826 cm².

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The area of the old manhole
cover as given in the problem is 3000 cm² which is obviously too big for the hole.
Well, could the street sweeper
have used it? Perhaps for a while, until she finds a cover that will exactly fit the open manhole.