Isosceles Triangle

isosceles-triangle
What is an Isosceles Triangle? Definition: An isosceles triangle is defined as a triangle having two congruent sides or two sides that are the same length. An isosceles triangle can also be an equilateral triangle, but it doesn't have to be. Definitions for these triangles typically include the word “only” or “exactly”. These words make a difference when considering if…

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Glide Reflection

glide-reflection
What is Glide Reflection? Definition: A glide reflection in math is a combination of transformations in 2-dimensional geometry. First, a translation is performed on the figure, and then it is reflected over a line. Therefore, Glide reflection is also known as trans-flection. Translation simply means moving, every point of the shape must move the same distance, and in the same…

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Parallelogram

parallelogram
What is a Parallelogram? Definition: A parallelogram is a quadrilateral, four sided figure, that has opposite sides that are both congruent and parallel. What does a parallelogram look like? Specific types of parallelograms include rectangles and squares. These shapes are often seen and used in the world around us. Let's look at what makes a parallelogram and how to prove…

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Z-Score Chart

z-score-chart
A Z-Score chart, often called a Z-Table, is used to find the area under a normal curve, or bell curve, for a binomial distribution. The Z score itself is a statistical measurement of the number of standard variations from the mean of a normal distribution. The Z-score value can either positive or negative indicating that sample lies above or below…

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Rationalize the Denominator

rationalize-the-denominator
How to Rationalize the Denominator Rationalizing the denominator is the process of moving any root or irrational number (cube roots or square roots) out of the bottom of the fraction (denominator) and to top of the fraction (numerator). The denominator is the bottom part of a fraction. This part of the fraction can not have any irrational numbers. The most common…

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Completing the Square

completing-the-square
How to Complete the Square in Algebra Completing the square, sometimes called x 2 x 2, is a method that is used in algebra to turn a quadratic equation from standard form, ax2 + bx + c, into vertex form, a(x-h)2 + k. The vertex form is an easy way to solve, or find the zeros of quadratic equations. It also helps to…

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