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# Mathematics

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### Volume of a cone

The volume of a cone can be calculated using the following formula Volume = (1÷3) x Π x r2 x h Where: Π = pI (3.14) r = radius h...

### Area of an annulus

How to find the area of an annulus The area = π x (Outer Radius 2 - Inner radius 2) Example: π = 3.14 Outer Radius = 10 cm Inner radius = 8 cm Area =...

### Arc length, how to calculate

You can calculate the length of an arc quite simply, but how you calculate it depends if the angle of the arc is measured...

### Volume of a sphere

The volume of a sphere can be calculated using the following formula V = (4÷3) x Π x r3 Where V = Volume (m3) Π = Pi (3.142 approx) r...

### SI Units

The SI units of measurement are based on seven quantities, other commonly used quantities are derived from these. SI Base units: .tg {border-collapse:collapse;border-spacing:0;border-color:#000000;} .tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px...

### Area of a Parallelogram

How to calculate the area of a Parallelogram. It's very simple to calculate the area of a Parallelogram, you just need to use the following formula. A =...

### Area of a square

How to find the area of a square The area = Height x Width Example: Height = 10 cm Width = 10 cm Area = 10 cm x 10 cm ANSWER...

### Area of a Trapezium

How to calculate the area of a Trapezium. It's very simple to calculate the area of a Trapezium, you just need to use the following...

### Area of a Triangle

How to calculate the area of a triangle It's very simple to calculate the area of a triangle, you just use the following formula. A =...

### Area of a circle

How to find the area of a circle The area = π x Radius 2 Example: π = 3.14 Radius = 10 cm Area =  3.14 x 102  ANSWER : 314...