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A 25 cm wide path is to be made around a circular garden having a diameter of 4 meters. Approximate area of the path is square meters is__________?

Correct answer: A. 3.34

  • A. 3.34
  • B. 2
  • C. 4.5
  • D. 5.5

Explanation

The garden radius is 4 m ÷ 2 = 2 m, and the path increases it to 2.25 m because 25 cm = 0.25 m. Path area is π(2.25^2 - 2^2) sq.m = π(1.0625) sq.m ≈ 3.34 sq.m. Option b treats the path as a rectangle rather than the difference between two circular areas.

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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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