ACT Math Exam Questions 2026. Exam Questions and Correct Answers With 100% Correct Answers | Latest 2026 |

ACT Math Exam Questions 2026. Exam Questions and Correct Answers With
100% Correct Answers | Latest 2026 |




Area of a Triangle - A = (1/2)(b)(h)



Area of a Circle -



Circumference of Circle -



Perimeter of a Square - P = 4(s)



Area of a Square -



Area of a Trapazoid - a and b are the two bases



Area of a Rectangle - A = (l)(w)



Perimeter of a Rectangle -



Properties of a Rectangle - -4 right angles; -Diagonals bisect each other and are congruent;
-Opposite sides are equal


Similar Triangles - corresponding angles are equal, corresponding sides are proportionate



Pythagorean Theorem -

,Sine Ratio - SOH



Cosine Ratio - CAH



Tangent Ratio - TOA



Distance Formula -



Midpoint Formula -



Slope Formula -



Slope-Intercept Formula -



Multiplying Terms with Exponents - add the exponents



Dividing Terms with Exponents - subtract the exponents



Distributing Exponents - multiply the exponents



Negative Exponent - take the reciprocal and change the exponent to positive



Positive Slope -



Negative Slope -



Volume of a Cube - V=s*s*s

, Volume of a Rectangular Solid -



Surface Area of a Cube -



Surface Area of a Rectangular Solid -



Parallel Lines - same slope, different y intercept, no points in common



Secant Ratio - sec(A) - 1/cos(A) = Hypotenuse/Adjacent



Cosecant Ratio - csc(A) - 1/sin(A) = Hypotenuse/Opposite



Cotangent Ratio - cot(A) - 1/tan(A) = Adjacent/Opposite



Tan(A) - Sin(A)/Cos(A)



Percent Change - % change = [(new value - old value)/ old value] x 100



what percent - x/100



is - =



the product of - * (multiplication)



the sum of - + (addition)