Bunuel wrote:

Which of the following is equal to the perimeter of the figure above?

(A) r + s + a + b

(B) 2r + s + a + b

(C) 2(r + s) – (a + b)

(D) 2(r + s) + (a + b)

(E) 2(r + s)

Attachment:

2017-09-20_1019_002.png

The top left side is equal to s - b and the right-hand side is equal to r - a; thus, the perimeter is:

r + s - b + a + b + r - a + s = 2r + 2s = 2(r + s)

Answer: E

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