Brian McLogan
How to use the sine function to find the missing side of a triangle
👉 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...
Let's Tute
Learning Properties of Quadrilaterals
Properties of Quadrilaterals part 1/2: The video features a 14-year-old boy named Tom who participates in a quiz contest on the properties of quadrilaterals. He uses his knowledge of geometry and theorems to solve three questions in the...
Brian McLogan
Using similar triangles to find the measure of x
👉 Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a...
Brian McLogan
Geometry - What Does Congruency of AAS for Triangles Look Like
👉 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...
KnowMo
SohCahToa: Finding Side Lengths and Angles in Right Triangle Problems
This video is on calculating side lengths and angles using sine, cosine, and tangent ratios. The instructor emphasizes the importance of accurately labeling triangles with opposite, adjacent, and hypotenuse sides before selecting a ratio...
KnowMo
Using the Sine Rule to Calculate the Area of Triangles and Quadrilaterals
The video is a lecture presentation on how to calculate the area of triangles using the A=0.5abSinc formula. The presenter explains what areas are and how they are calculated, and then proceeds to show how to use the formula when one of...
Curated Video
Trigonometry Basics: Using the Sine Rule for Non-Right Angle Triangles
The video is a lecture presentation on the sine rule, which is used to calculate missing side lengths and angles in non-right angle triangles. The presenter explains the three trigonometry ratios (sine Theta, Cos Theta, and tan Theta)...
Brian McLogan
Find the missing length using special right triangles
Find the missing length using special right triangles
Brian McLogan
How do you determine two triangles are similar using angle angle aa
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
Brian McLogan
How to label triangles depending on the length of their sides
👉 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...
Brian McLogan
How to determine if three lengths make up a triangle
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
Law of sines Ambiguous case Two Triangles
👉 Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions,...
Brian McLogan
Sum and Difference Formula Evaluate Right Triangles
Sum and Difference Formula Evaluate Right Triangles
Brian McLogan
Why special right triangles help use evaluate trig functions
👉 Learn how to evaluate trigonometric functions using the special right triangles. A right triangle is a triangle with 90 degrees as one of its angles. A special right triangle is a right triangle with the angles 30, 60, 90 degrees or...
Brian McLogan
How to evaluate for the secant of an angle without using a calculator
👉 Learn how to evaluate trigonometric functions using the special right triangles. A right triangle is a triangle with 90 degrees as one of its angles. A special right triangle is a right triangle with the angles 30, 60, 90 degrees or...
Curated Video
I WONDER - How Many Types Of Triangle Are There?
This video is answering the question of how many types of triangle are there.
Tarver Academy
Finding Angles in Isosceles Triangles
In This Episode, Tyler Teaches Us About Finding Angles in Isosceles Triangles
Let's Tute
Quadrilateral Theorem - part 2
Here You'll learn theorems on Rectangle & Rhombus Diagonals of Rectangle are congruent and that of rhombus are perpendicular bisectors and theirs converse as well
Brian McLogan
Applying the pythagorean inequality theorem to classify triangles as acute right or obtus
Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The Pythagoras theorem states that the...
Brian McLogan
Classifying triangles how to classify a triangle based on the sides of the triangle ex 6
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Brian McLogan
How to find the missing side of two similar triangles
👉 Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a...
Brian McLogan
Determining if Two Triangles are Congruent by Plotting Points
👉 Learn how to show whether two triangles are congruent from the coordinate (x-y) plane. Two or more triangles are said to be congruent if they have the same shape and size. To show whether two triangles whose points on the coordinate...