Tag: math & puzzles

Questions Related to math & puzzles

What is the “formal” definition of pi?

general knowledge math & puzzles

  1. the surface area of a sphere of diameter 22/7

  2. 3.1415926

  3. the ratio of a circle’s diameter to its circumference.

  4. the ratio of a circle’s circumference to its diameter

  5. the ratio of a circle’s circumference to its radius.

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Correct Option: D

How many equal sides does an icosahedron have?

general knowledge math & puzzles

  1. 20

  2. 15

  3. 10

  4. None of these

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Correct Option: A

According to him, sum of the angles of a triangle is greater than 180 degree...

general knowledge math & puzzles

  1. Euclid

  2. Riemann

  3. Lobachevsky

  4. It is impossible!

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Correct Option: B

In this proof-technique, the proposition is proven true by proving that it is impossible for it to be false.

general knowledge math & puzzles

  1. Reductio Ad Absurdum

  2. Quod Erat Demonstrandum

  3. Credo quia absurdum

  4. Argumentum Ad Absurdum

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Correct Option: A

Which of the following has has the largest surface area to volume ratio?
general knowledge math & puzzles

  1. Tetrahedron

  2. Cube

  3. Sphere

  4. Dodecahedron

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Correct Option: A

The curve traced by a point on the rim of a circular wheel as the wheel rolls along a straight line is called:-
general knowledge math & puzzles

  1. Cissoid

  2. Toroid

  3. Astroid

  4. Cycloid

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Correct Option: D

Which is the first perfect number?

general knowledge math & puzzles

  1. 28

  2. 4

  3. 1

  4. 6

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Correct Option: D

The triangle formed by the numbers 3, 4 and 5 is:

general knowledge math & puzzles

  1. Right

  2. Equilateral

  3. Isosolese

  4. Scalene

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Correct Option: A

One of these colors is visible in a rainbow:
general knowledge math & puzzles

  1. Lime

  2. Purple

  3. Indigo

  4. Cyan

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Correct Option: C

Consecutive integers from the Fibonacci sequence are in a ratio that approaches this never ending, never repeating number:
general knowledge math & puzzles

  1. The Golden Ratio

  2. 3 1/3

  3. Pi

  4. Square root of 2

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Correct Option: A