👉 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...

The ambiguous case can be very confusing on how to determine 1, 2 or no triangles and how it can make sense. In this video I try to give you visual pointers as well as some formulas to help you remember what case you have. Hope it helps.

In this lesson, students will learn how to prove the Pythagorean theorem using the area of a square and its pieces. The video demonstrates the process of duplicating a right triangle to form a square with four right triangles on the...

👉 Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value of the sine of the angle. The value of the sine of double a given angle is obtained using the formula sin(2u)...

👉 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 and...

👉 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,...

👉 Learn how to solve the word problems with trigonometry. Word problems involving angles, including but not limited to: bearings, angle of elevations and depressions, triangles problems etc are solved using trigonometry. To be able to...

👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...

👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...

👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...

Master Solving word problems with changing angles

This video is answering the question of what is a triangle.

In this video, the teacher explains the criteria for proving similarity and congruency between triangles, using different combinations of angles and sides. The video covers the AAA, AA, AAS, SAS, SSS, and RHS criteria, and provides...

Did you know that we can calculate the area of triangle even without it's height? Heron from Alexandria, derived a formula to calculate the area of triangle by using only the sides of the triangle and by using the perimeter of the...

Understanding points and trigonometric functions in different quadrants

Sum and Difference Formula Evaluate with Right Triangles

Master evaluating the six trig functions, given a triangle with a missing side

Master composing inverse trig functions using right triangles

While you might not think that sharks and the Hubble Space Telescope have a lot in common, it turns out they share an incredible bond!



Music: “Happy Tulip” by Stéphane Caisson [SACEM],...

👉 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...

👉 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,...

👉 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...

Timestamps: 0:00 Intro 0:55 Example #1 (one triangle) 4:30 Example #2 (no triangle) 5:05 Example #3 (two triangles) Corrections: 3:58 I made a mistake, I replaced the side b=15 to the angle A. It should have been h = (15)(sin40); (h = 9.64)

👉 Learn how to define and classify different angles based on their characteristics and relationships are given a diagram. The different types of angles that we will discuss will be acute, obtuse, right, adjacent, vertical, supplementary,...