Length: 0:31ScaleThe garden is 8 cm long on the plan. How many meters is that?Grade 4Learning video 61 · Geometry
Radius and Diameter
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Read the story
We draw a circle with a compass.
The point stays in the center. The distance to the edge is the radius.
The diameter goes straight across through the center. It is twice as long as the radius.
The radius is 4 cm. How long is the diameter?
Answer and working
Correct! 2 times 4 is 8 centimeters.
2 × 4 = 8
Geometry
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