ATI TEAS MATH FORMULAS SPRING SEMESTER 2026
Triangle Perimeter
P=a+b+c
Square Perimeter
P=4s
Rectangle Perimeter
P=2l+2w
parallelogram area
A=bh
Trapezoid Area
A=1/2h(b1+b2)
Circle Area
A=πr^2
Surface area prisms
Triangle Perimeter
P=a+b+c
Square Perimeter
P=4s
Rectangle Perimeter
P=2l+2w
parallelogram area
A=bh
Trapezoid Area
A=1/2h(b1+b2)
Circle Area
A=πr^2
Surface area prisms