Perimeter and Area

Composite shapes

A shape constructed from a combination of two or more other shapes

Perimeter

The length of the outer side of a diagram, shape or area

Perimeter of composite shapes

Perimeter (Step 1)

Measure all the outer sides of the composite shape

Perimeter (Step 2)

Total up the length of all the outer sides of the composite shape

Area

The space occupied by a flat shape or the surface of an object

Area of a square

length × breadth

Area of a triangle

Area of a rectangle

length × breadth