Geometry Ch7
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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| Pythagorean triple | A set of three positive integers a, b, and c that satisfy the equation c2=a2+b2.
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| Trigonometric ratio | A ratio of the lengths of two sides in a right triangle.
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| Tangent | A trigonometric ratio, abbreviated as tan. For a right triangle ABC, the tangent of the acute angle A is tan A = length of leg opposite <A over length of leg adjacent to <A = BC over AC.
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| Sine | A trigonometric ratio, abbreviated as sin. For a right triangle ABC, the sine of the acute angle A is
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| Cosine | The trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
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| Angle of elevation | When you look up at an object, the angle that your line of sight makes with a line drawn horizontally.
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| Angle of depression | When you look down at an object, the angle that your line of sight makes with a line drawn horizontally
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| Solve a right triangle | To find the measures of all of the sides and angles of a right triangle.
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| Inverse tangent | An inverse trigonometric ratio, abbreviated as tan -1. For acute angle A, if tan A=x, then tan -1 x = m<A.
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| Inverse sine | An inverse trigonometric ratio, abbreviated as sin -1. For acute angle A, if sin A=y, then sin -1 = m<A.
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| Inverse cosine | An inverse trigonometric ratio, abbreviated as cos -1. For acute angle A, if cos A=z, then cos -1 = m<A.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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.
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:
Dludden03
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