theorems and postulates relating to congruent triangles (chp. 4)
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each of the black spaces below before clicking
on it to display the answer.
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| The sum of the measures of the angles of a triangle | 180
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| If two angles of one triangle are congruent to two angles of a second triangle, then | the third angles of the triangles are congruent
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| The measure of the exterior angle of a triangle is equal | to the sum of the measures of the two remote interior angles
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| The acute angles of a right triangle are | complementary
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| There can be at most | one right or obtuse angle in a triangle
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| If the sides of one triangle are congruent to the sides of a second triangle, then | the triangles are congruent
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| If two angles and the included side of one triangle are congruent to the corresponding two angles and side of a second triangle, then | the two triangles are congruent
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| If the legs of one right triangle are congruent to the corresponding legs of another right triangle, then | the triangles are congruent
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| Congruence of triangles is | reflexive, symmetric, and transitive
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| If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then | the triangles are congruent
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| If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle | the triangles are congruent
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| If the hypotenuse and acute angle of one right triangle are congruent to the hypotenuse and corresponding acute angle of another right triagle, then | the two triangles are congruent
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| If one leg and an acute angle of one right triangle are congruent to the corrsponding leg and acute angle of another right triangle, then | the triangles are congruent
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| If the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and corresponding leg of another right triangle, then | the triangles are congruent
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| If two sides of a triangle are congruent, then | the angles opposite those sides are congruent
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| If two angles of a triangle are congruent, then | the sides opposite those angles are congruent
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| A triangle is equilateral if and only if | it is equiangular
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| Each angle of an equilateral triangle measures | 60 degrees
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Created by:
m.meyer
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