OGT Math Study Guide
Measurement
Length : Shows distance (in units) from one point to another.
ex. You want to build a pond 6 feet long.
6ft.
6ft.
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length
Area : The # of square units needed to cover a surface. In our
example we need to use the length & width of the pond.
ex. You want to make your pond 4 feet wide.
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6ft. x 4ft.= 24ft.
4ft.
l x w = area
6ft.
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2
Your pond now has an area of 24ft
(24 square feet).
Perimeter: Add up the length of all the sides of your shape, in this case
your pond. The perimeter is necessary if you were going to figure out
how many bricks we need to go around the entire pond or if we wanted
to put a fence around it.
6ft. + 6ft. + 4ft. + 4ft. = 20ft.
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