CEMC Fermat, 2000

Geometry Difficulty 2.0 Junior Find the answer Canada

Two circles of radius 10 are tangent to each other. A tangent is drawn from the centre of one of the circles to the second circle. To the nearest integer, what is the area of the shaded region?

(A) $6$ (B) $7$ (C) $8$ (D) $9$ (E) $10$

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