If the circumference of a circle is 352 meters then its area in Sq.m is:________?
Correct answer: A. 9856
- A. 9856
- B. 8956
- C. 6589
- D. 5986
Explanation
From C = 2πr, the radius is r = 352 m ÷ (2 × 22/7) = 56 m. Therefore the area is πr² = (22/7) × (56 m)² = 9856 m²; option b, 8956 m², results from incorrect arithmetic.
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Area measures the surface enclosed by two-dimensional figures, while volume measures the space occupied by three-dimensional solids. Problems use formulas for rectangles, triangles, circles, prisms, cylinders, cones, spheres, and composite figures, including unit conversion and the distinction between surface area, lateral area, and volume.
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