Geometry Formulas for the PRAXIS® Core Academic Skills for Educators Mathematics Test
If you were struggling with the geometry section on the PRAXIS Core Academic Skills for Educator: Mathematics Test, we have good news for you. Its importance dropped from 20% to 12% of the questions in the test. There will be a set of geometric formulas that you will be able to use during the test as well. But that doesn’t mean you have to be careless about geometry on the test. It can represent the difference between passing and failing, or between passing and acing it.
That’s why we have compiled the following formula chart for you. Here you will find the essentials to succeed at geometry on the PRAXIS Core Academic Skills for Educator: Mathematics Test (5733).
Algebra Formulas for the PRAXIS Core Academic Skills Test
Number and Quantity Formulas for the PRAXIS Core Academic Skills Test
Geometry Formulas for the Praxis Mathematics Test
Category  Formula  Symbols  Comment 

Circles  \(C = 2 \cdot \pi \cdot r\) \(C = \pi d\) 
C = circumference (perimeter) of a circle r = radius d = diameter 
Provided during the test 
Circles  \(s = r \cdot \theta\)  s = arc length r = radius \(\theta\) = central angle (in radians) 

Circles  \(A = \pi r^2\)  A = area of circle r = radius 
Provided during the test 
Quadrilaterals  \(P = 4 \cdot s\)  P = perimeter of a square s = length of a side 

Quadrilaterals  \(P = (2 \cdot l)+(2 \cdot w)\)  P = perimeter of a rectangle l = length of rectangle w = width of rectangle 

Quadrilaterals  \(A=s^2\)  A = area of a square s = side length 

Quadrilaterals  \(A= l \cdot w\)  A = area of a rectangle l = length w = width 
Provided during the test 
Triangles  \(P = s_1 + s_2 + s_3\)  P = perimeter of a triangle \(s_n\) = side length 

Triangles  \(A = \frac{1}{2} b \cdot h\)  A = area of a triangle b = base h = height 
Provided during the test 
Rectangular Prism 
\(V = l \cdot w \cdot h\)  A = volume of a rectangular prism l = length w = width h = Height 
Provided during the test 
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