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1. Shahin has purchased a square sheet of plywood of 169 square feet area. To cover a wall he must cut off two feet from a side. What is the area, in square feet of the wall?
- A. 117
- B. 117
- C. 117
- D. 117
Answer: Option C
Explanation:
Side of the plywood = √169 = 13 feet
Cutting of 2 feet from a side will make it a rectangular sheet with a length of 13 feet and a width of 11 feet. Area of the wall is equal to the area of this sheet.
So, the area of the wall = 13 x 11 = 143 sq ft
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