area of a rectangle
Length x width
Area of a triangle (not using sine)
1/2 x base x height
Area of a trapezium
1/2 x (a + b) x height
Area of a parallelogram
Base x height
Area of a circle
Πr^2
Circumference of a circle
π x d OR π x 2r
Volume of a prism
Area of cross section x length
Volume of a cylinder
πr^2 x height
Pythagoras theorem
A^2 + b^2 = c^2
What triangle can you use pythagoras’ theorem with?
Right angled triangle
Trigonometric ratios
Opposite, hypotenuse and adjacent
SOH CAH TOA
What can you find using Pythagoras’ theorem?
Side lengths
Density (rearrangeable)
Density = mass ÷ volume
Speed (rearrangeable)
Speed = distance ÷ time
Pressure (rearrangeable)
Pressure = force ÷ area