🏠

🛞 Wheel Parts

⭐ 0

I can name and use the radius and diameter.

Audio is unavailable on this device.

📖 Learn first

The radius goes from the centre to the edge. The diameter goes across through the centre — it is 2 radii. The circumference is the distance around.

Example: Radius 6 cm

  1. Diameter = 2 × 6
  2. = 12 cm

Questions get harder as you go. The last ones ask you to type the answer.