Home › Previous year questions › GATE 2021 ST › Question 8GATE 2021 ST – Question 8 General Aptitude · Spatial Aptitude: Spatial Reasoning and Visualization · 2 marks · Multiple choice
A square sheet of side 1 is cut along a main diagonal. One resulting triangle is revolved about its short edge to make a solid cone. Find its volume in cubic units.
π/3 2π/3 3π/2 3π Practise this question in The GATE Grind →
Show answer and explanation Correct answer: (A) π/3
Explanation The triangle is right isosceles with legs 1. Revolving around one leg gives a cone of height 1 and radius 1. Volume=πr²h/3=**π/3, A**.
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