Circumfrence Flashcards
1
Q
What is a radius?
A
The distance from the centre of the circle to the edge
2
Q
What is a diameter?
A
The distance from one edge of the circle to the other edge but through the centre of the circle
3
Q
True or false? - Radius is half the diameter
A
True
4
Q
Circumference formula for a radius?
A
2 x pi x r = 2PIr
5
Q
Circumference formula for diameter?
A
Pi x d
6
Q
Area of a circle formula?
A
Pi x r x r
