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Maths I

Area

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In your General Exam you may need to work out the area of any of the following shapes; rectangle, triangle, rhombus, kite and parallelogram. You may also need to work out the area of combined shapes.

# Calculating the area of a rectangle or of a triangle

For all the shapes you do calculations for, make sure that you don't confuse area (the space taken up by a surface) with perimeter (the distance round the outside of a shape).

Remember that areas are measured in square units - square centimetres cm2, square metres m2 etc.

## The area of a rectangle

The area of a rectangle is found by multiplying the length by the breadth.

For this rectangle:

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=

## The area of a triangle

The area of a triangle is found by multiplying by the base by the height.

For the first triangle:

Area = x base x height

=

=

For the second triangle:

Area = x base x height

=

=

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