Have you ever thought that whether all the circular objects are really circles or not ?
For example, the wheel in the photo seems circular, right? You can also say that it is a circle. However, how do we know it is really a circle? What if the wheel is a circle, Where is the center of the wheel ? remember the definition of a circle : a curve that is always the same distance from a center. Are you sure that wheel has the same
distance from its center ?
You are confused, aren't you?
Through this webquest, you will get a chance to explore how to decide a circular object is circle and you will find its center if it is a really circle.
How about its circumference and area ???
You will also explore circumference and area of a circle without using any formula !
Click on Task Button to move on !
distance from its center ?
You are confused, aren't you?
Through this webquest, you will get a chance to explore how to decide a circular object is circle and you will find its center if it is a really circle.
How about its circumference and area ???
You will also explore circumference and area of a circle without using any formula !
Click on Task Button to move on !