Problem Solving

BTGmoderatorDC wrote:

In the figure, the 6 small squares are identical, each with sides of length 1. What is the outer perimeter (shown in bold) of the entire figure?

A. 8

B. 12

C. 16

D. 20

E. 24

OA E

Source: Official Guide

Let's convert the figure as below.



The perimeter = 12.

The correct answer: B

Hope this helps!

-Jay
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BTGmoderatorDC wrote:

In the figure, the 6 small squares are identical, each with sides of length 1. What is the outer perimeter (shown in bold) of the entire figure?

A. 8

B. 12

C. 16

D. 20

E. 24

OA E

Source: Official Guide

The small square on the left has an outer perimeter of 4 - 1 = 3. The larger square (which is composed of 4 smaller squares) in the middle has an outer perimeter of 8 - 2 = 6. The small square on the right has an outer perimeter of 4 - 1 = 3. Thus, the outer perimeter of the entire figure is 3 + 6 + 3 = 12.

Answer: B