Matching Pairs Match the Geometry FormulasOnline version Match formulas by Shauna Holt 1 Circumference of a circle 2 Area of a parallelogram 3 Area of a Triangle 4 Volume of a Prism 5 Volume of a cylinder 6 Area of a Circle 7 Area of a Trapezoid 1/2 b h Area of the Base x height b h pi r r pi d 1/2 b h (b1 + b2) pi r r h