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