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10.6 More Angle-Arc Theorems (Practice)
By AutenMath
A lesson on 1.) the relationship of inscribed and tangent-chord angles with the same or congruent arcs 2.) the measure of an inscribed angle whose intercepted arc is a semicircle and 3.) the relationship of tangent-tangent angles and their minor arcs
Central, inscribed, and circumscribed angles
By Khan Academy
Sal finds missing angles using the property that tangents are perpendicular to the radius.
Central, inscribed, and circumscribed angles
By Khan Academy
Sal finds a missing angle using the property that tangents are perpendicular to the radius.
Tangents and Circles - YourTeacher.com - Geometry Help
By yourteachermathhelp
Students learn the following theorems related to tangents. If a line is tangent to a circle, then the line is perpendicular to the radius at the point of tangency. If a line is perpendicular to a radius at its outer endpoint, then the line is tangent to the circle. If two tangent segments are drawn to a circle from an external point, then the tangent segments are congruent. Students are then asked to use these theorems to find missing segment lengths and missing angle measures in given figures. Students also learn the definitions of common internal tangents and common external tangents.
Understanding inverse trig functions
By Khan Academy
Sal discusses the appropriate way to use the calculator in order to find an angle when its tangent value is given.
Reciprocal trig functions
By Khan Academy
Sal finds all six trigonometric ratios (sine, cosine, tangent, secant, cosecant, and cotangent) of an angle in a given right triangle.
Inscribed Angles - YourTeacher.com - Geometry Help
By yourteachermathhelp
Students learn the definition of an inscribed angle, and that the measure of an inscribed angle is equal to ½ the measure of its intercepted arc. Students also learn the following theorems related to inscribed angles. If two inscribed angles intercept the same arc, then the angles are congruent. An angle inscribed in a semicircle is a right angle. If a quadrilateral is inscribed in a semicircle, then opposite angles are supplementary. The measure of an angle formed by a chord and its tangent is half the measure of the intercepted arc. Students are then asked to find the missing measures of arcs and angles in given circles using these theorems.
11 - Learn ArcSin, ArcCos & ArcTan (Inverse Sin, Cos & Tan) - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
06 - Review of Essential Trigonometry (Sin, Cos, Tangent - Trig Identities & Functions)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
14 - Reference Angles Explained - Sine, Cosine & Unit Circle - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
08 - Calculate Sin, Cos & Tan w/ Unit Circle in Radians - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Trigonometric Substitution
By The Organic Chemistry Tutor
This calculus video tutorial provides a basic introduction into trigonometric substitution. It explains when to substitute x with sin, cos, or sec. It also explains how to perform a change of variables using u-substitution integration techniques and how to use right triangle trigonometry with sohcahtoa to convert back from angles in the form of theta to an x variable. There's plenty of examples and practice problems in this lesson.
07 - Trig Functions of Acute Angles - (Sin, Cos, Tan, Cot, Sec & Csc Theta) - Part 1 - Trig Ratios
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Banked turn Physics Problems
By The Organic Chemistry Tutor
This physics video tutorial provides plenty of practice problems on banked turns without friction. It explains how to set up the free body diagram to solve banked curve problems and how to derive the formula to calculate the speed of a car and the banking angle without static friction and how to calculate the minimum speed and the maximum speed that a car can travel without sliding up or down the banked curve as well.
04 - What is the Unit Circle? Angle Measure in Degrees, Reference Angles & More.
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
