jlgdr wrote:

Attachment:

Untitled.png

The rectangular region above contains two circles and a semicircle, each with a radius of 7. If 22/7 is used as an approximation for π, then the area of the shaded region is approximately

(A) 105

(B) 210

(C) 380

(D) 385

(E) 405

Area of 2 Circles = 2*[22/7 * 7 * 7] = 2 * 154 = 308

Area of semicircle = 1/2 * [ 154 ] = 77.

Total Area of 2 circles + Semicircle = 308 + 77 = 385

Area of Rectangle = 35 * 14 = 490

Area of shaded region = 490 - 385 = 105

Option A

Hope it is clear

Cheers

Qoofi

_________________

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