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