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Math Trivia

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