Document page
mathematicsprinted 85 · PDF 86
165 pagesrevision 46935
printed 85 · PDF 86
Page image rendered from the stored file at 110 dpi; it sharpens as you zoom. Outlines are placed from each region’s stored position on the page (595 × 842 pt).
readable
Source of this text: embedded text layer. The better of the embedded text and OCR is kept.
85
respectively. For example, to convert from cubic metres to cubic millimetres,
the value is multiplied by 10003.
Area and Perimeter
The area of a 2-D shape refers to the space that the shape takes up. The
perimeter of a 2-D shape refers to the length of the boundary. The following
table shows some shapes and the formulas used to find their
areas/perimeters.
Shape
Diagram
Formula for
Area
Formula for
Perimeter
Square
l2
4×l
Rectangle
l×w
2l+2w
Triangle
½×b×h
a+b+c
Trapezium
½×h×(a+b)
a+b+c+d