Multiple choice

If the curved surface area of a cylinder is 88 m2 and height is 7 m, the radius of the base is

  1. 2 m

  2. 20 m

  3. 40 m

  4. 4 m
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A Correct answer
Explanation

Curved surface area of a cylinder = 2 * pi * r * h. 88 = 2 * (22/7) * r * 7. 88 = 44 * r. r = 88 / 44 = 2 m.

AI explanation

The curved surface area of a cylinder is found using the formula 2*pi*r*h. Substituting the given values results in the equation 88 = 2*(22/7)*r*7. Simplifying the right side gives 88 = 44*r, so dividing 88 by 44 yields a radius of 2 m.

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