Multiple choice

The height of square based prism is 30 cm. If its total surface area is equal to 1400 cm2, then find its volume?

  1. 3800

  2. 4600

  3. 3000

  4. 2800
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a square prism with height h=30 cm and total surface area TSA=1400 cm², we use TSA = 2a² + 4ah. Substituting: 2a² + 4a(30) = 1400, giving a² + 60a - 700 = 0. Solving yields a=10 cm. Volume = a²h = 100 × 30 = 3000 cm³.

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