Circle Parts
What is the Circumference of a Circle?
The distance around a circle or any curved geometrical shape.
What are the two know things you need to calculate the circumference of a circle?
Pi and radius
What is the radius of a circle?
The distance from the centre to the outer line of the circle.
Given two value of pi.
3.14 or 22/7
What is a circle?
A circle is defined as a shape with all the points are equidistant from a point at the centre.
Given the diameter of a circle is 34cm, what is the radius?
17cm
Is the diameter twice the size of a radius?
true
A circle has radius 12mm. What is the mathematical statement to solve for the circumference, given pi- 3.14?
C = 2 x 3.14 x 12mm
What is the difference between the diameter and a chord?
Th diameter passes through the Centre of a circle while the chord does not.
How else can we find the circumference of a circle without using the formula?
We could use a string/thread and ruler.