ACT Math Formulas
Area of a triangle—ANSWER--(b•h)/2
EX: (7•6)/2 = 21
Area of a Trapezoid—ANSWER--1/2 • h • (b1 + b2)
EX: 1/2 • 3 • (2+6) = 12 square yards
Area of a Cylinder—ANSWER--πr² + πr² + h•2πr
Volume of a Cylinder—ANSWER--πr² • h
EX: π(3cm)•(3cm)•8cm= 226.08 cubic centimeters
Volume of a Triangular Prism—ANSWER--Volume of Triangle Prism=
(area of triangular base)x(height of prism)
Volume of a Rectangular Prism—ANSWER--Volume of Rectangular Prism=
Area of a triangle—ANSWER--(b•h)/2
EX: (7•6)/2 = 21
Area of a Trapezoid—ANSWER--1/2 • h • (b1 + b2)
EX: 1/2 • 3 • (2+6) = 12 square yards
Area of a Cylinder—ANSWER--πr² + πr² + h•2πr
Volume of a Cylinder—ANSWER--πr² • h
EX: π(3cm)•(3cm)•8cm= 226.08 cubic centimeters
Volume of a Triangular Prism—ANSWER--Volume of Triangle Prism=
(area of triangular base)x(height of prism)
Volume of a Rectangular Prism—ANSWER--Volume of Rectangular Prism=
