Calculate Area & Volume Flashcards
Area Square
A = L(2)
Area Rectangle
A = L X W
Area Triangle
A = b x h / 2
Area Parallelogram
A = b x h
Area Trapezoid
A = ( L1 + L2) / 2 x h
Area Circle
A = Pie r2
Area Equilateral Shapes
A = b x h / 2 x n
Area Irregular and Combined Shapes
A = Area full rectangle - area of rectangle(s) missing
A = Break shapes into familiar parts, calculate areas, then add (or subtract if missing) areas together
Area Three - Dimensional Shapes
A = P x h + 2(Top Area)
Volume Rectangle
V = L x w x h
Volume Triangle
V = (b x h / 2) x L
Volume Cylinders
V = Pie r2 x h
Volume Combined Shapes
V = End Area x L
Volume Pyramids/Cones
V = End Area x Height / 3
Volume Measurement Metric
Cubic metre (m3)
Examples items purchased metric units
Concrete, Soil, and aggregates sold m3
Examples items purchased imperial units
Soil and gravel sold yd3
Volume Measurement Imperial
Cubic yard (yd3)
What needs to be done to volume measurements when calculating.
Consistent Units
Need to ensure units same before calculations made and Convert mm to m before calculations
