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