Multiple choice

A person wants to make a cylindrical box which is open from the top. If the height of that box is 10cm and radius is 7 cm find the area of sheet which is required to make it.

  1. 880

  2. 1188

  3. 594

  4. 440

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An open-top cylindrical box requires the base area (circular) plus the lateral (curved) surface area. Base area = πr² = (22/7)×7×7 = 154 cm². Lateral area = 2πrh = 2×(22/7)×7×10 = 440 cm². Total = 154 + 440 = 594 cm².