Circles Flashcards

1
Q

How do you find the radius of a circle?

A

Divide the diameter by 2.

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2
Q

How do you find the circumference of a circle?

A

Multiply the diameter by 3.14

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3
Q

How do you find the area of a circle?

A

Multiply radius^2 by 3.14

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4
Q

Radius = ?
Diameter = 10

A

5

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5
Q

Radius = 10
Diameter = ?

A

20

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6
Q

Radius = 5
Diameter = ?
Circumference = ?

A

Diameter = 10
Circumference = 31.4

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7
Q

How do you find the diameter of a circle?

A

Multiply the radius by 2.

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8
Q

Radius = ?
Diameter = 10
Circumference = ?
Area = ?

A

Radius = 5
Circumference = 31.4
Area = 78.5

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