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