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Math Trivia
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What is the name of a 10-sided polygon?
Decagon
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In statistics, what is the difference between “mean” and “median”?
Mean = average of all values; Median = middle value when ordered
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What does it mean if two lines are perpendicular?
They meet at a 90° angle
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What does “factorising” mean in algebra?
Writing an expression as a product of factors
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What is the name of the graph that represents a quadratic function?
Parabola
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What is the name of the theorem that relates the sides of a right triangle?
Pythagorean Theorem
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What is the name of the set of all points at the same distance from a fixed point?
Circle (in 2D) / Sphere (in 3D)
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What do we call a triangle with two equal sides?
Isosceles triangle
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What is the term for a number that is divisible only by 1 and itself?
Prime number
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What is the term for the longest side of a right triangle?
Hypotenuse
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In probability, what does it mean if two events are independent?
One event does not affect the probability of the other
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What is the name of a number that can be written as a fraction of two integers?
Rational number
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What do we call an angle that is less than 90°?
Acute angle
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In geometry, what is the name of a shape with exactly one pair of parallel sides?
Trapezium (UK) / Trapezoid (US)
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What is the name of the ratio “adjacent ÷ hypotenuse” in trigonometry?
Cosine (cos)
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What is the name of the process of finding the area under a curve?
Integration
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What does the symbol ∑ mean in mathematics?
Summation (sum of terms)
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What do we call an angle that is greater than 90° but less than 180°?
Obtuse angle
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What is the name of the ratio “opposite ÷ adjacent” in trigonometry?
Tangent (tan)
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What is the name of the method used to solve a system of equations by adding or subtracting them?
Elimination method
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What do we call a triangle with all three sides equal?
Equilateral triangle
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What is the name of the process of finding the derivative of a function?
Differentiation
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