In this video, Mrs. C shows you how to find the **perimeter of composite figures**—shapes made up of squares, rectangles, triangles, and semicircles. You’ll learn how to: Identify which sides are on the outside of the figure Add up all...

In this lesson, Mrs. C walks you step by step through **finding the area of composite figures**—shapes made up of two or more simple figures like squares, rectangles, triangles, and semicircles. You’ll learn how to: Break a composite...

Learn how to find the surface area of pyramids step-by-step with Mrs. C! In this lesson, we break down all the important parts of a pyramid—base, lateral faces, slant height—and use clear, color-coded examples to find the total surface...

How to Find the Volume of a Prism | Math Defined \ 7.G.B.6 Today we’re learning how to find the volume of prisms, including rectangular prisms, oblique prisms, triangular prisms, and even a hexagonal prism. We’ll use the formula V = Bh...

Not all angles are what they seem! In this video, Mrs. C from Math Defined will show you how to classify angles as *vertical, adjacent, complementary, or supplementary**. Using clear examples, diagrams, and easy-to-remember tricks (like...

In today’s lesson, we’ll explore what surface area really means, how nets help us see every face, and how to find surface area for rectangular prisms, triangular prisms, and parallelogram prisms. Then you’ll learn the shortcut formula SA...

In today’s lesson, we’re learning how to find the Surface Area Of Cylinders — including the total surface area and lateral surface area. We’ll break down the formulas step-by-step, plug in real values, and work through several examples...

Learn how to find the *area of a circle* with simple, step-by-step examples! In this middle school math lesson, Mrs. C from Math Defined explains how to use the formula *A = πr²* to calculate the area of a circle whether you’re given the...

In this short video we will answer a standardized high school math test question where we identify an equivalent exponential expression by simplifying. We will begin by using the Power to a Power Rule to "distribute" an exponent outside...

In this short video we will answer a standardized math test question using similar triangles to find a unknown angle. We will begin by reviewing the definition of similar figures. We will identify the corresponding angles and use the...

In this shorts video we will answer a standardized math test question using similarity. We will begin by identifying key information given in the problem and by defining similar figures. We will use this definition to identify the...

In this short math video we will use function notation to translate a function. We will understand that translating a function down impacts the y-coordinate of EVERY point on the function. We will rewrite the function by subtracting 4...

In this shorts math video, we will answer a standardized math test question about the conditional probability of drawing a blue marble from a bag of marbles. We will review the information provided to understand the number of marbles in...

In this short video we will Solve for x to determine the correct solution. We will first distribute to clear parentheses. Since the equation has variables on both sides, we will collect variable terms to one side using inverse...

In this shorts video we will find an unknown side length. We are given a pair of triangles and told they are similar figures. Using the definition of similar figures, similar figures have corresponding sides that are proportional, we...

In this shorts video we will rotate a segment 180 degrees. Will will understand that a rotation of 180 degrees is two 90 degree turns. We will rotate about a point or vertex, so, this will be the center of rotation. We will graph the...

In this shorts video we will determine which graph is a linear function. We will first determine which of the four graphs is linear by understanding linear means a straight line. We will then learn how to determine which graph is a...

In this shorts video we will learn how to find the volume of a cone. We will begin by writing the formula. We will identify the missing variables or dimensions of the cone. Using the provided image we will identify the diameter and...

In this shorts video we will answer a standardized math test question by comparing rates in miles per hour. We will read the information provided. We will determine the miles per hour from a graph. We will understand the graph shows a...

In this shorts video we will answer a standardized math test question by finding difference using temperature. We will create a vertical number line to represent a thermometer. We will plot our given temperatures. We will understand...

In this shorts video we will answer a standardized math test question by using the distributive property. We will understand that the parentheses represent multiplication in the given expression. We will learn that the parentheses in...

In this shorts video we will find the radius of a circle using area. We will begin with identifying the formula for finding the area of a circle. We will highlight the given information and rewrite the area formula using the given...

In this shorts video we will learn about fractions & repeating decimals. We will rewrite the fraction as a repeating decimal. We will set up long division and divide to identify the repeating digits. We will write the repeating...

In this shorts video we will be writing a real world linear system. We will recognize that each equation in the given systems is written in slope-intercept form. We will understand that m represents the slope which is the unit rate in...