Trignomotry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Radians | A unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius.
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| Degrees | A unit of measurement of angles, one three-hundred-and-sixtieth of the circumference of a circle: "set at an angle of 45 degrees".
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| Coterminal Angle | Two angles are coterminal if they are drawn in the standard position and both have their terminal sides in the same location.
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| Quadrantal angle | An angle with terminal side on the x-axis or y-axis. That is, the angles 0°, 90°, 180°, 270°, 360°, 450°, ... as well as –90°, –180°, –270°, –360°, ...
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| Unit Cicle | The circle with radius 1 which is centered at the origin on the x-y plane.
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| Reference angle | Is an acute version of that angle
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| Sine | Written sin θ, Opposite/hypontenuse
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| Cosine | For acute angles, cos θ, Adjacent/hypotenuse
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| Tangent | tan θ equals Sinθ/Cosθ
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| Cosecant | The ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine
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| Secant | The ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle); the reciprocal of a cosine.
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| Cotangent | The ratio of the side (other than the hypotenuse) adjacent to a particular acute angle to the side opposite.
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| Inverse | The quantity which cancels out the a given quantity
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| Arcsin | The inverse function of the sine; the angle that has a sine equal to a given number.
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| Arccos | The inverse function of the cosine; the angle that has a cosine equal to a given number.
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| Arctan | The inverse function of the tangent; the angle that has a tangent equal to a given number.
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| Law of Sines | Equations relating the sines of the interior angles of a triangle and the corresponding opposite sides.
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| Law of Cosines | An equation relating the cosine of an interior angle and the lengths of the sides of a triangle.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
alvarezm1480
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