👉 Learn how to find a missing side length of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a...

👉 Learn about congruent triangles theorems. Two or more triangles (or polygons) are said to be congruent if they have the same shape and size. There are many methods to determine whether two triangles are congruent. Some of the methods...

In this video, students will learn how to determine if a number is a perfect square and how to find its square root. The teacher explains that a perfect square can be formed by arranging a certain number of unit squares into a square...

👉 Learn all about classifying triangles. A triangle is a closed figure with three sides. A triangle can be classified based on the length of the sides or based on the measure of the angles. To classify a triangle based on the length of...

This video teaches the basics of trigonometry and how to use it to find missing lengths and angles in a triangle. The presenter explains the three trig functions (sine, cosine, and tangent) and offers memory aids to remember them. The...

Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...

During this video lesson, students will be introduced to the Pythagorean Theorem which is read a squared plus b squared equals c squared. Students will learn key vocabulary and how to identify the legs and hypotenuse of a right...

In this video we will explore how to handle the ambiguous case with two triangles. We will do this by finding the acute and obtuse triangle. Timestamp 0:00 Intro 1:00 Case #1 First Triangle (Acute) 4:46 Case #1 Second Triangle (Obtuse)

In this video, we learn how to find the length of the midsegment of a triangle by using properties of triangle similarity. The video provides a step-by-step explanation and proof of the triangle midsegment theorem.

In this video, students will learn how to describe the relationship between the volumes of two consecutive cubes using a simplified polynomial identity. The video explains the concept of consecutive integers and how to represent them...

In this video, the teacher explains how to decide which unit of measure to use when measuring area. They demonstrate the concept of square units and how they can vary in size depending on the measurement unit. Through examples of a...

👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right...

👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...

In this video, the teacher explains how to simplify square roots by using physical models and the Pythagorean theorem. They demonstrate how to calculate the length of a square root by finding the area of squares and splitting them into...

In this video, you will learn how to evaluate expressions for the area of a square and the surface area of a cube. By understanding the formulas and applying them to real-world problems, you will be able to calculate the area of a square...

👉 Learn how to solve with similar polygons. Two polygons are said to be similar if the corresponding angles are congruent (equal). When two polygons are similar the corresponding sides are proportional. Knowledge of the length of the...

👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...

Find the Bearing and Distance | Law of Cosines word problem

Find all the missing measures SAS | Law of Cosines

In this lesson I will show you how to apply the law of cosines to find the missing measures of a triangle when given SSS and SAS. We will also take a look at Heron's formula and word problems with bearings.

👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right...

In this video lesson we will learn how to create a right triangle in the coordinate plane to use the Pythagorean Theorem to find the diagonal distance between to points. We will find the perimeter of a right triangle in the coordinate...

In this video, the teacher explains how to find the area in real-world situations using multiplication. They review the concept of area and the measurements of length and width for rectangles. They provide examples of finding the area of...

👉 Learn about the special right triangles. A special right triangle is a right triangle having angles of 30, 60, 90, or 45, 45, 90. Knowledge of the ratio of the length of sides of a special right triangle enables us to solve for any...