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2-D Measurement

Stack #202820

distance around a geometric figure (or sum of all sides) PERIMETER
perimeter of a circle CIRCUMFERENCE
distance from center to any point on a circle RADIUS
distance across a circle through its center DIAMETER
what the diameter is compared to the radius TWICE AS LONG
used in circle formulas; equivalent to 3.14 or 22/7 PI
number of square units needed to cover the surface of a figure AREA
perpendicular distance from a figure's base to the opposite side HEIGHT
used as an aid to help solve perimeter, area, and volume problems FORMULA CHART
(bh)/2 or 1/2(bh) AREA OF TRIANGLE
pi times the radius squared AREA OF CIRCLE
Created by: marc_scott