Multiple choice

Write the total surface area of a right circular solid cone having radius $10\ cm$ and slant height $25\ cm$ (Take $\pi=\cfrac{22}{7}$)

  1. $1100\ {cm}^{2}$
  2. $2100\ {cm}^{2}$
  3. $1150\ {cm}^{2}$
  4. $1200\ {cm}^{2}$
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A Correct answer
Explanation

Total surface area of a cone = pi * r * (r + l). r = 10, l = 25. TSA = (22/7) * 10 * (10 + 25) = (22/7) * 10 * 35 = 22 * 10 * 5 = 1100.

AI explanation

The total surface area of a right circular cone is given by the formula pi multiplied by r multiplied by the sum of l and r. Substituting the given values gives 22 divided by 7 multiplied by 10 multiplied by the sum of 25 and 10, which simplifies to 22 divided by 7 multiplied by 10 multiplied by 35. This yields a total surface area of 1100 square centimeters.

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