SSAT Math Question 297: Answer and Explanation
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Question: 297
1. A rectangle has a width 7 times its length. If the area of the rectangle is 28, then what is the perimeter of the rectangle?
- A. 2
- B. 4
- C. 14
- D. 16
Correct Answer: E
Explanation:
The answer is E
Draw a rectangle and label the length x and the width 7x. Write an equation to solve for x: (x) (7x) = 28. Divide both sides by 7 and take the square root of both sides: x = 2. Now, the length is 2, and the width is 14. Find the perimeter by adding all four sides: 2 + 2 + 14 + 14 = 32.