Mathematics for IGCSE & O level - Mensuration (Section 9 - No. 35)
What are the two key elements required to calculate the area of a circle?
Circumference and Diameter
Radius or diameter and Pi (π)
Length and Width
Area and Volume
स्पष्टीकरण
The formula for the area of a circle requires the radius or the diameter which is then multiplied by π.