******Not all necessary formulas are on these flashcards; view my profile for complete notes****** If you're looking at this set before October 28th 2023: This flash card set may be incomplete. Please, please, please do not view this as a one stop ticket for the ACT math portion. The ACT Math portion is mostly made of word problems. I've only created this set to provide important formulas that should be memorized .**If are reading this last minute before you take the ACT** You should prioritize memorizing the geometry formulas; The ACT has a lot of questions about geometry and this should be your #1 priority.
Midpoint Formula
Area of a triangle
½bh
Area of a square
S²
Area of a rectangle
LW
Area of a Parallelogram
BH
Area of a Trapezoid
½(B1 +B2) H
Area of a circle
πr²
Area of a rhombus
½d,d2
Volume of a prism
LWH
Volume of a cylinder
πr²h
Degrees of a triangle
180°
Circle
360°
Quadrilateral
360°
Degrees of a figure with “n” sides
180(n-2)
Circumference
2πr = πd