Spinning Your Wheels

Drag the blue point in the center of the wheel to move it. You can click and drag the background to shift your view. Use the mouse wheel to zoom in and out.

What is the distance the wheel travels in one rotation?

选择所有适用项

A
The length of the radius.
B
The length of the diameter.
C
The length of the circumference.

Choose a measurement for the radius of the wheel and roll the wheel out. How far did the wheel roll out? Repeat the process with three more measurements and fill in the table below.

检查答案

What is the relationship between the radius and the diameter?

选择所有适用项

A
The radius is twice the diameter.
B
The diameter is equal to radius × pi
C
The diameter is twice the radius.

检查答案 (3)

What is the relationship between the diameter and the circumference?

选择所有适用项

A
The circumference is equal to radius + diameter.
B
The circumference is equal to the diameter × pi
C
The circumference is equal to twice the diameter.

检查答案 (3)

Find the circumference of a wheel with radius 25cm.

Spinning Your Wheels

Drag the blue point in the center of the wheel to move it. You can click and drag the background to shift your view. Use the mouse wheel to zoom in and out.

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