Circle Flashcards
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
