Arc Length and Area of a Sector of a CircleCalculates the arc length of a circle and the area of the sector of a circle
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Watch the VideoBearingTakes a bearing and lists the steps needed to get from Point A to Point B using that bearing.
CalculatorCofunction CalculatorCalculates the cofunction of the 6 trig functions:
* sin
* cos
* tan
* csc
* sec
* cot
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Watch the VideoComplementary and Supplementary AnglesThis calculator determines the complementary and supplementary angle of a given angle that you enter OR it checks to see if two angles that you enter are complementary or supplementary.
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Watch the VideoDecimal Degree Minutes SecondsConvertes decimal degrees to degrees, minutes, seconds or degrees, minutes seconds, to decimal degrees
CalculatorPrefix MultipliersShows a table of prefix multipliers, designators, symbols, and values
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Watch the VideoPythagorean TheoremFigures out based on user entry the missing side or missing hypotenuse of a right triangle. In addition, the calculator shows the proof of the Pythagorean Theorem and then determines by numerical evaluation if the 2 sides and hypotenuse you entered are a right triangle using the Pythagorean Theorem
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Watch the VideoPythagorean Theorem Trig ProofsShows the proof of 3 pythagorean theorem related identities using the angle θ:
Sin2(θ) + Cos2(θ) = 1
Tan2(θ) + 1 = Sec2(θ)
Sin(θ)/Cos(θ) = Tan(θ)
CalculatorReference AngleCalculates the reference angle for a given angle. Also known as the positive acute angle.
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Watch the VideoSum to Product and Product to Sum FormulasGiven two angles in degrees of u and v, this determines the following:
* Sin(u) ± Sin(v)
* Cos(u) ± Cos(v)
* Sin(u)Sin(v)
* Cos(u)Cos(v)
* Sin(u)Cos(v)
* Cos(u)Sin(v)
* Sin(u + v)
* Sin(u - v)
* Cos(u + v)
* Cos(u - v)
* Tan(u + v)
* Tan(u - v)
CalculatorTriangle Solver and Classify TrianglesSolves a triangle including area using the following solving methods
Side-Angle-Side (SAS) Side Angle Side
Angle-Side-Angle (ASA) Angle Side Angle
Side-Side-Angle (SSA) Side Angle Side
Side-Side-Side (SSS) Side Side Side
Area (A) is solved using Herons Formula
Law of Sines
Law of Cosines
Also classifies triangles based on sides and angles entered.
CalculatorTrig Angle conversionsConverts between degrees, radians, gradians, revolutions, and quadrants.
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Watch the VideoTrig MeasurementGiven an angle θ, this calculates the following measurements:
Sin(θ) = Sine
Cos(θ) = Cosine
Tan(θ) = Tangent
Csc(θ) = Cosecant
Sec(θ) = Secant
Cot(θ) = Cotangent
Arcsin(x) = θ = Arcsine
Arccos(x) = θ = Arccosine
Arctan(x) =θ = Arctangent
Also converts between Degrees and Radians and Gradians
Coterminal Angles as well as determine if it is acute, obtuse, or right angle. For acute angles, a cofunction will be determined. Also shows the trigonometry function unit circle
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Watch the VideoTrigonometry RelationsCalculates various trigonometry measurements (sin,cos,tan,csc,sec,cot) given other measurements that you enter.
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Watch the VideoUnit CircleDetermines if coordinates for a unit circle are valid, or calculates a variable for unit circle coordinates
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Watch the VideoWhat is a Unit CircleThis lesson walks you through what a unit circle is and how to use it
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Watch the Video