classifying triangles
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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| what is a triangle? | a figured formed by 3 noncollinear points connected by segments.
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| what is the vertex of a triangle? | the vertex of each angle is a vertex of the triangle
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| what is an isosceles triangle | an isosceles triangle has at least 2 congruent segments and two base angles.
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| what is the vertex of an isosceles triangle? | the vertex is the angle formed by the two congruent legs of that triangle and it is opposite of the base
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| what is a scalene triangle? | a scalene triangle is a triangle that has no congruent sides.
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| what is an equilateral triangle? | an equilateral triangle is a triangle that all the lengths of the segments are congruent.
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| are all equilateral triangles also isosceles triangles? | yes!
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| what is an acute triangle? | a triangle where all angles are less then 90 degress
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| what is an obtuse triangle? | a triangle where one one angle is greater then 90.
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| what is a right triangle? | a triangle that has one angle that is 90 degress.
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| what is the sum of the measures of the angles of a triangle? | 180 degress
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| are the acute angles of the right triangle complementary? what does this mean? | yes, it means that the two angles add up to 90 degress
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| what do we know about all three angles in an equiangular triangle? | all three angles are congruent. they all equal 60 degress
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Created by:
mrsjohnsonbasicgeome
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