ACT 2024 Math Flashcards
ACT Practice
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14 Terms
Discriminant
The portion of the quadratic formula under the radical sign, b2-4ac
Distinct
different
Greatest Common Factor
The largest factor common to two numbers
Least Common Multiple
The smallest multiple common to two numbers
Rational
A number that can be expressed as the ratio of two other numbers, making a fraction
Supplementary Angles
Angles that add up to 180.
Vertical Angles
Angles that are opposite from each other and always equal each other
Perpendicular Angle
A measure of 90 degrees
Equilateral Triangle
Three equal sides and angles
Hypotenuse
Longest side of the triangle, opposite of the right angle
Pythagorean Theorem
a2+b2=c2
Isosceles Right Triangle
Whatever the length of those two equal sides of the isosceles triangle, the length of the hypotenuse is always equal to those side lengths times the square root of 2.
Formula for the Area of a Circle
pi*r2
Formula for the Circumference of a Circle
2*pi*r
