Circles Flashcards

1
Q

Circle

A

A closed figure where all points on the line are equidistant from the center of the shape

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2
Q

Circumference

A

The distance around a circle

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3
Q

Circumference Formula

A

C = 2(3.14)(radius) or C = 3.14(diameter)

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4
Q

Area of Circle

A

A = 3.14(radius)(rradius)

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5
Q

Diameter (d)

A

Distance across the circle

(edge to edge through center)

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6
Q

Radius (r)

A

Distance from center of circle to edge of circle

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7
Q

Semicircle

A

Half of a circle

Find the area of the circle, then divide area of circle by 2

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8
Q

Quarter Circle

A

One Fourth of the circle

Find the area of the circle, and divide by 4.

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