Maths (Foundation)

• What is an acute angle?

  Between 0° and 90°
• What is an obtuse angle?

  Between 90° and 180°
• What is a right angle?

  Equal to 90°

  
• What is a reflex angle?

  Between 180° and 360°
• What are the types of angles?

  • Acute angle: between 0° and 90°
  • Obtuse angle: between 90° and 180°
  • Right angle: equal to 90°
  • Reflex angle: between 180° and 360°

  
• What is the sum of angles in a triangle?

  $180°$
• What is the sum of interior angles in a hexagon?

  $720°$
• What are the properties of angles in parallel lines?

  • Alternate angles are equal
  • Corresponding angles are equal
  • Interior angles are supplementary
  • Vertically opposite angles are equal
• What is the formula for the area of a rectangle?

  $Area =$$length \times width$

  
• What is the formula for the area of a triangle?

  $Area =$$\frac{1}{2} \times base \times height$
• What is the formula for the circumference of a circle?

  $Circumference =$$\pi \times diameter$
• What is the formula for the area of a circle?

  $Area =$$\pi \times radius^2$

  
• What are the parts of a circle?

  • Radius
  • Diameter
  • Circumference
  • Chord
  • Arc
  • Tangent
  • Sector
  • Segment

  
• What is the mode?

  The value that appears most often
• What is the median?

  The middle value when the values are arranged in order
• What is the range?

  The difference between the largest and smallest values
• What are the measures of central tendency?

  • Mode: the value that appears most often
  • Median: the middle value when the values are arranged in order
  • Mean: the average of the values
• What is the formula for the area of a trapezium?

  $Area =$$\frac{1}{2} \times (a + b) \times height$

  
• What are the properties of parallel and perpendicular lines?

  • Parallel lines: always the same distance apart, never meet
  • Perpendicular lines: meet at a right angle (90°)

  
• What are the types of polygons?

  • Triangle: 3 sides
  • Quadrilateral: 4 sides
  • Pentagon: 5 sides
  • Hexagon: 6 sides
  • Heptagon: 7 sides
  • Octagon: 8 sides

  
• What are the properties of polygons?

  • Number of sides
  • Interior angles
  • Exterior angles
  • Sum of interior angles

  
• What is the sum of interior angles in a quadrilateral?

  $360°$
• What are the types of quadrilaterals?

  • Rectangle: opposite sides equal, opposite angles equal
  • Square: all sides equal, all angles equal
  • Rhombus: all sides equal, opposite angles equal
  • Trapezium: one pair of opposite sides equal

  
• What are the properties of quadrilaterals?

  • Opposite sides
  • Opposite angles
  • Diagonals
  • Sum of interior angles
• What is the sum of interior angles in a triangle?

  $180°$
• What are the types of triangles?

  • Equilateral: all sides equal, all angles equal
  • Isosceles: two sides equal, two angles equal
  • Scalene: all sides unequal, all angles unequal
• What are the properties of triangles?

  • Side lengths
  • Interior angles
  • Exterior angles
  • Sum of interior angles
• What is the definition of a positive correlation?

  Relationship between two variables where one increases as the other increases
• What is the definition of no correlation?

  No relationship between two variables
• What are the different types of 3D shapes?

  • Cube
  • Cuboid
  • Sphere
  • Cone
  • Cylinder
  • Triangular Prism
  • Square-based Pyramid
  • Pentagonal Prism

  
• What is the definition of parallel lines?

  Two lines that are always the same distance apart

  
• What is the formula to calculate the angle per person in a pie chart?

  $360 / total frequency$
• What is the definition of perpendicular lines?

  Two lines that intersect at a 90-degree angle

  
• What are the different types of line symmetry?

  • Isosceles Triangle
  • Rectangle
  • Square
  • Equilateral Triangle
  • Regular Hexagon
• What is the definition of a prime number?

  A number with exactly two factors: 1 and itself
• What is the definition of a square number?

  A number that can be expressed as the square of an integer
• What are the first few square numbers?

  • 1 (1^2)
  • 4 (2^2)
  • 9 (3^2)
  • 16 (4^2)
  • 25 (5^2)
  • 36 (6^2)
  • 49 (7^2)
  • 64 (8^2)
  • 81 (9^2)
  • 100 (10^2)
• What is the definition of rounding numbers?

  Approximating a number to the nearest whole number or decimal place
• What is the order of operations?

  Brackets, Division and Multiplication, Addition and Subtraction
• What are the steps to calculate the lowest common multiple (LCM) and highest common factor (HCF) of two numbers?

  • List the prime factors of each number
  • Identify the common prime factors
  • Multiply the common prime factors to find the HCF
  • Multiply all the prime factors to find the LCM