The lateral surface area of a right triangular prism is 288 cm2. If the lengths of the smaller bases are 6 cm and 8 cm respectively, find the height of the prism.

  1. 14 cm
  2. 12 cm
  3. 24 cm
  4. 22 cm

Answer (Detailed Solution Below)

Option 2 : 12 cm
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SSC CPO : General Intelligence & Reasoning Sectional Test 1
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Detailed Solution

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Length of the larger base = √(62 + 82) = 10 cm (Using Pythagoras theorem)

Let the length of the height of the prism be X cm.

19.11.2018.001

Perimeter of the given prism = 6 cm + 8 cm + 10 cm = 24 cm

Area of the right triangular prism = Perimeter × Height

⇒ 24 × X = 288

⇒ X = 12 cm

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