SSAT Math Question 664: Answer and Explanation
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Question: 664
8. 
What is the perimeter of this figure?
- A. 120
- B. 44
- C. 40
- D. 36
Correct Answer: B
Explanation:
To find the perimeter, it doesn't matter how the right-hand vertical segments are broken up. Since everything meets at right angles, those segments will all add up to the same height as AB, which is 12. Similarly, it does not matter how the top horizontal lines are divided. They will still add up to the same length as AC, which is 10. Therefore, simply add 10 + 10 + 12 + 12 to find the perimeter of 44. The correct answer is (B).