The radius of a circle is half the length of its diameter. Therefore, if the diameter of the circle is 10 cm, the radius would be half of that, which is 5 cm. The formula to find the radius of a circle is r = d/2, where r is the radius and d is the diameter.
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diameter = radius × 2
→ radius = diameter ÷ 2
= 10 cm ÷ 2
= 5 cm
Radius = Diameter/2 = 10 cm
5 cm
The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm
The diameter of a circle is double the radius. So a circle with a radius of 7 cm has a diameter of 14 cm.
Oh, what a happy little question! If the diameter of a circle is 10 cm, we can find the radius by simply dividing the diameter by 2. So, the radius would be 5 cm. Just imagine that circle sitting there, perfectly balanced and ready for some happy little trees.