Mathematics for IGCSE & O level - The Four Operations (Section 8 - No. 36)
Which of the following correctly represents the relationship between a radius and a diameter of a circle?
The radius is half of the diameter.
The diameter is twice the radius.
The radius is the diameter multiplied by pi.
The diameter is the radius divided by pi.
הֶסבֵּר
Diameter = 2 * radius.