ISEE Mathematics Achievement Question 273: Answer and Explanation

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Question: 273

3. If the area of a square is equal to its perimeter, what is the length of one side?

A. 1
B. 2
C. 4
D. 8

Correct Answer: C

Explanation:

C Since the question asks for a specific value, use PITA to answer this question, starting with (C). If the side length of a square is 4, its perimeter is 16 because 4 + 4 + 4 + 4 = 16 and its area is also 16 because 4² = 16. Since those are equal, stop here. The correct answer is (C).

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