Bunuel wrote:
In the figure above, the shaded rectangular portion of the square region has perimeter 20. What is the perimeter of the unshaded portion?
(A) 28
(B) 34
(C) 36
(D) 40
(E) 68
[Reveal] Spoiler:
Length of rectangle = 8
Side of square = 8
Perimeter of square = 8*4 = 32
perimeter of the unshaded portion = 32 - 2*2 = 28
Answer A
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