math
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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| acute angle | angle less than 90 degrees |
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| obtuse angle | angle greater than 90 degrees |
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| right angle | angle equaling 90 degrees |
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| acute triangle | triangle with all acute angles |
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| obtuse triangle | triangle with one obtuse angle |
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| right triangle | triangle with one right angle |
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| scalene triangle | triangles whose sides are all different measures |
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| isosceles triangle | triangle with two sides that are congruent |
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| equilateral triangle | triangle with all three sides congruent |
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| equiangular triangle | triangle with three congruent angles |
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| The measure of an angle in an equilateral or equiangular triangle | 60 degrees |
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| The sum of all angles in a triangle | 180 degrees |
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| exterior angle of a triangle | angle formed by one side of a triangle and the extension of another side |
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| remote interior angles | interior angles not adjacent to a given exterior angle |
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| congruent triangles | triangles that have corresponding parts congruent |
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| congruence transformations | occurs when a slide | flip | or turn of a triangle does not change the size or shape
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| included angle | angle formed by two sides of a triangle |
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| SSS Postulate | If the sides of one triangle are congruent to the sides of another triangle | then the two triangles are congruent. |
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| SAS Postulate | If two sides of a triangle and their included angle are congruent to two sides of another triangles and their included angle | then the triangles are congruent. |
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| included side | the side between two angles of a triangle |
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| ASA Postulate | If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle | then the two triangles are congruent. |
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| AAS Postulate | If two angles and a nonincluded side of one triangle are congruent to the corresponding angles and side of a second triangle | then the two triangles are congruent. |
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| SSA Postulate | a valid test of congruence for right triangles |
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| base angles | two angles formed by the base and the congruent sides of an isosceles triangle |
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| vertex angle | angle formed by the two congruent sides of an isosceles triangle |
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| coordinate proof | uses figures in the coordinate plane and algebra to prove geometric concepts |
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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.
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Created by:
Elive
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