alleryStart learning →A rectangle has a length of 32 meters and a width of 20 meters. What is its area?
A104 square meters
B640 square meters
C52 square meters
D320 square meters
Answer & Solution
Correct answer: B. 640 square meters
1. The area of a rectangle is the length multiplied by the width.
2. Substitute the values: A equals 32 times 20.
3. 32 times 20 equals 640.
4. The area of the rectangle is 640 square meters.
5. Confusing the area with the perimeter and reporting 104 mixes up the two different formulas for a rectangle.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 9 "Math Models and Geometry", section 9.4 Use Properties of Rectangles, Triangles, and Trapezoids_
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