Geometry and TrigonometryHardSide of a square from its area, then perimeter
Geometry and Trigonometry practice question
A square rug has an area of 36 square feet. A border strip is to run around all four edges of the rug. How many feet of strip are needed?
Answer: 24
Side = √36 = 6 feet. Perimeter = 4 × 6 = 24.
Common wrong answers
- If you answered 12
- 12 is 2 × 6, only two sides.
- If you answered 36
- 36 is the area, not the perimeter.
- If you answered 144
- 144 multiplies the area by 4 instead of the side.
More Geometry and Trigonometry questions
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What is 135° expressed in radians? - Hard
What is the length of segment PT? - Hard
What is the measure, in degrees, of the central angle of this sector?
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