Phase2Area of a CircleThe measurement of the surface enclosed by a circle. Formulas A = [latex]πr^{2}[/latex] or A = [latex]π\frac{d^{2}}{4}[/latex] Example Consider a circle with a radius of 10 cm. [latex]A = πr^{2} = π × 10^{2} = 100π[/latex]. [latex]A ≈ 314.16[/latex]
