Circle Flashcards Preview

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Flashcards in Circle Deck (10)
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1
Q

Radius

A

The distance from the centre of a circle to the outer rim

2
Q

Chord

A

A line segment whose endpoints are on a circle.

3
Q

Diameter

A

A chord that passes through the center of the circle. The length of a diameter is two times the length of a radius.

4
Q

Tangent

A

A straight line that touches the curve surface at a point

5
Q

Arc

A

A portion of the circumference of a circle.

6
Q

Segment

A

The division of a chord

7
Q

Sector

A

A portion of a circle which resembles a pizza slice.

8
Q

What is the rough calculation of pi (π)

A

3.14

22/7

9
Q

The formula to calculate pi (π)

A

Circumference/diameter

2 x π x radius

10
Q

What is the formula to calculate the circumference?

A

C= πxd