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Mathematical Madness Trivia Quiz

Here are a range of maths related questions designed to test, amuse or terrify you.

A multiple-choice quiz by loopy_s. Estimated time: 3 mins.

Author
loopy_s

Time
3 mins

Type
Multiple Choice

Quiz #
203,044

Updated
Jun 16 22

# Qns
10

Difficulty
Average

Avg Score
6 / 10

Plays
878

One at a Time - Single Page - Timed Game

Question 1 of 10

1. How many faces does an icosahedron have? Hint

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Question 2 of 10

2. What does "commutative" mean? Hint

a*(b*c)*d = (a*b)*(c*d)

commutative is not a mathematical term

a*b*c = d

a*b = b*a

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Question 3 of 10

3. Which famous mathematician said that: "In any right angled triangle the square of the hypotenuse is equal to the sum of the squares of the other two sides"? Hint

Pascal

Aristotle

Pythagoras

Einstein

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Question 4 of 10

4. Given any solid, if v is the number of vertices, e the number of edges and f the number of faces, which of the following is true? Hint

v + e - f = 2

v + e + f = 2

v - e - f = 2

v - e + f = 2

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Question 5 of 10

5. Which of the following is true? Hint

Every isoceles triangle is equilateral

A scalene triangle has at least two sides the same length

A triangle can have two right angles

Every equilateral triangle is isoceles

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Question 6 of 10

6. Which is the correct expansion of these brackets: (x+2)(3x-7) Hint

3x^2 + x - 14

3x^2 - 13x - 14

3x^2 - x - 14

3x^2 - 14

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Question 7 of 10

7. What does "associative" mean? Hint

Associative is not a mathematical term

a*b = b*a

a*(b*c)=(a*b)*c

a*b*c = d

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Question 8 of 10

8. Which of the following is not true? Hint

A dodecahedron has 12 faces

There are exactly 6 platonic solids

A square is a special type of rhombus

In spherical geometry, parallel lines meet

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Question 9 of 10

9. Which of the following conversions is incorrect? Hint

20 000 mg = 2 g

670 km = 670 000 000 mm

3000 tonnes = 3 000 000 kg

30 cm = 0.0003 km

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Question 10 of 10

10. What does "permutative" mean? Hint

Permutative is not a mathematical term.

a*b = b*a

a*b*c = d

a*(b*c)*d = (a*b)*(c*d)

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Quiz Answer Key and Fun Facts

1. How many faces does an icosahedron have?

Answer: 20

An icosahedron is any 20 faced solid shape. The faces of a regular icosahedron are equilateral triangles.

2. What does "commutative" mean?

Answer: a*b = b*a

a*(b*c)*d = (a*b)*(c*d) is the property of associativity. In group theory the operation doesn't necessarily have to be multiplication. For instance a+b = b+a also illustrates the term "commutative".

3. Which famous mathematician said that: "In any right angled triangle the square of the hypotenuse is equal to the sum of the squares of the other two sides"?

Answer: Pythagoras

Pythagoras was born in about 569 BC in Samos, Ionia. He died in about 475 BC. We have very little written evidence of his work as the society he led followed a code of secrecy.

4. Given any solid, if v is the number of vertices, e the number of edges and f the number of faces, which of the following is true?

Answer: v - e + f = 2

This is called Euler's formula and is true for Eulerean geometry. It is different for solids in other geometries such as spherical or hyperbolic spaces.

5. Which of the following is true?

Answer: Every equilateral triangle is isoceles

An equilateral triangle has three equal sides. An isoceles triangle has two equal sides. A scalene triangle has no equal sides or angles. The angle sum of any triangle is 180 degrees.

6. Which is the correct expansion of these brackets: (x+2)(3x-7)

Answer: 3x^2 - x - 14

The expansion formula is (a+b)(c+d) = ac + ad + bc + bd.

7. What does "associative" mean?

Answer: a*(b*c)=(a*b)*c

a*b = b*a is the property of commutativity.

8. Which of the following is not true?

Answer: There are exactly 6 platonic solids

There are five platonic solids: the cube, dodecahedron, icosahedron, octahedron, and tetrahedron.

9. Which of the following conversions is incorrect?

Answer: 20 000 mg = 2 g

Aaaaah, too many zeros!

10. What does "permutative" mean?

Answer: Permutative is not a mathematical term.

a*(b*c)*d = (a*b)*(c*d) is the property of associativity.
a*b = b*a is the property of commutativity. Permutative is a word we made up.

Source: Author loopy_s

This quiz was reviewed by FunTrivia editor crisw before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.

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Referenced Topics

Science Vocabulary Math Mixed Math Geometry Mathematicians Pythagoras

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