In the given diagram, the circle touches the \(y\)-axis at point \(K\) whose coordinate is \((0,7).\) If the area of

[M7MBA]

In the given diagram, the circle touches the \(y\)-axis at point \(K\) whose coordinate is \((0,7).\) If the area of triangle \(CKO\) is \(21 \, \text{units}^2,\) where \(C\) is the center of the circle, find the area of the circle.

A. \(16\pi\)
B. \(21\pi\)
C. \(24\pi\)
D. \(36\pi\)
E. \(49\pi\)

Answer: D

Source: e-GMAT