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Quiz about Math is for Squares
Quiz about Math is for Squares

Math is for Squares Trivia Quiz


OK, so someone in the Author's Challenge wanted a quiz about squares. Here's a quiz about squares. Warning: your calculator might not help you very much!

A multiple-choice quiz by Tchochkekop. Estimated time: 5 mins.
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Author
Tchochkekop
Time
5 mins
Type
Multiple Choice
Quiz #
318,480
Updated
Dec 03 21
# Qns
10
Difficulty
Difficult
Avg Score
5 / 10
Plays
780
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Question 1 of 10
1. Which of the following represents the square of ANY number n? Hint


Question 2 of 10
2. What is i^2 (i squared)? Hint


Question 3 of 10
3. Solve n^2 = n. Note: There are two answers.

Answer: (Enter two numbers, separated by a space)
Question 4 of 10
4. Which of the following can be made into a square with changes to its angles only? Hint


Question 5 of 10
5. Everybody knows that each angle of a square is 90 degrees, right? Well, I just drew a square whose angles are each 120 degrees. Where did I draw it?
Hint


Question 6 of 10
6. A number raised to the second power is a square, and a number raised to the third power is a cube. What term can be used for a square of squares, or a number raised to the fourth power?
Hint


Question 7 of 10
7. If a solid object undergoes a proportional increase in size, which measure increases by the square of the multiplier?
Hint


Question 8 of 10
8. Using only a compass and a straightedge, you try, in a finite number of steps, to make a square with the same area as a given circle. Don't try too long, because it can't be done! That this is a futile exercise was proven in 1882 with the Lindemann-Weierstrass theorem. What's the name of this famous problem?
Hint


Question 9 of 10
9. In rectangular coordinates, what is the fourth vertex of a square whose other vertices are (1,1) (3,-1) (1,-3)?
Hint


Question 10 of 10
10. Finally, you have 1475.366 feet of fencing and want to use it to enclose a quadrilateral fish farm for vermillion Clupea pallasii. The fish farm is to have the maximum possible area. What shape will the farm be?
Hint



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Quiz Answer Key and Fun Facts
1. Which of the following represents the square of ANY number n?

Answer: n*n

A square is a number multiplied by itself. n*2 would be correct only for "two squared". 2^n usually means "two to the nth power."
2. What is i^2 (i squared)?

Answer: -1

i is the base of the imaginary numbers, or the square root of -1. Therefore, i^2 = -1.
3. Solve n^2 = n. Note: There are two answers.

Answer: 0 1

The only numbers that are the squares of themselves are 0 and 1 (0*0=0, 1*1=1). Infinity is not correct because infinity squared is a higher infinity (greater aleph), a concept that is way beyond the scope of this quiz!
4. Which of the following can be made into a square with changes to its angles only?

Answer: Rhombus

A rhombus is a quadrilateral with equal sides, so changing the angles to 90 degrees makes it a square. For rectangles and parallelograms, you might also have to change the lengths of the sides.
5. Everybody knows that each angle of a square is 90 degrees, right? Well, I just drew a square whose angles are each 120 degrees. Where did I draw it?

Answer: On a sphere

A square's angles are, indeed, 90 degrees in Euclidian geometry. In non-Euclidian systems, however, other sizes are possible. In spherical geometry, a square can have angles of 120 degrees. In a hyperbolic plane, the angles are 72 degrees each.
6. A number raised to the second power is a square, and a number raised to the third power is a cube. What term can be used for a square of squares, or a number raised to the fourth power?

Answer: Quartic

"Quadratic" actually relates to equations or terms of the second degree, and "prismatic" I just made up. While "quartic" is sometimes used for numbers of the fourth degree, it is not very common.
7. If a solid object undergoes a proportional increase in size, which measure increases by the square of the multiplier?

Answer: Surface area

When you expand a solid object, its surface area increases by the square of the multiplier, and its volume increases by the cube of the multiplier. This is known as the "square-cube law".
8. Using only a compass and a straightedge, you try, in a finite number of steps, to make a square with the same area as a given circle. Don't try too long, because it can't be done! That this is a futile exercise was proven in 1882 with the Lindemann-Weierstrass theorem. What's the name of this famous problem?

Answer: Squaring the circle

Squaring the circle can't be done because pi is a transcendental irrational number rather than an algebraic irrational number, which is what the Lindemann-Weierstrass theorem proved. Aren't you glad I saved you hundreds of years of wasted work?
9. In rectangular coordinates, what is the fourth vertex of a square whose other vertices are (1,1) (3,-1) (1,-3)?

Answer: (-1,-1)

An easy way to solve this is to draw it. This square is not "flat"; it looks like a diamond. The slope of each side is 1 (or -1).
10. Finally, you have 1475.366 feet of fencing and want to use it to enclose a quadrilateral fish farm for vermillion Clupea pallasii. The fish farm is to have the maximum possible area. What shape will the farm be?

Answer: Square

The length is a red herring (or a vermillion Clupea pallasii). The maximum area you can enclose with a given perimeter is a circle, but that's not a quadrilateral. For a quadrilateral, a square gives the maximum area. Too tricky? Remember what the theme of this quiz is!
Source: Author Tchochkekop

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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