Multiple choice

Fill in the blanks: Surface area of a cylinder = ............. x ........... + .......... .

  1. 2 $\times$ area of rectangle $+$ area of circle
  2. 2 $\times$ area of circle $+$ area of rectangle
  3. 2 $\times$ area of square $+$ area of rectangle
  4. 2 $\times$ area of rectangle $+$ area of rectangle
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B Correct answer
Explanation

The total surface area of a cylinder consists of two circular bases (2 * area of circle) and the curved lateral surface, which unfolds into a rectangle (area of rectangle).

AI explanation

A cylinder is composed of two circular bases and one curved rectangular lateral surface. Therefore, the total surface area equals the area of both circles plus the area of the rectangle. The correct completion is 2 times the area of a circle plus the area of the rectangle.

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