A wheel makes 1000 revolutions is covering a distance of 88 km. the diameter of the wheel is
Correct answer: C. 28m
- A. 14m
- B. 24m
- C. 28m
- D. 40m
Explanation
The wheel travels 88 km ÷ 1000 = 0.088 km = 88 m in one revolution, so its circumference is 88 m. Using circumference = pi × diameter, diameter = 88 m ÷ (22/7) = 28 m. The likely trap is 14 m, which is the radius rather than the diameter.
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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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