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Quadrilaterals
Triangles
More Triangles
General Vocabulary
Angles
100
Parallelogram with 4 congruent sides and 4 right angles.
What is a square?
100
Triangles that are the same shape and size.
What is congruent?
100
A triangle with two sides congruent.
What is an isosceles triangle?
100
An If - then statement.
What is a conditional?
100
An angle less than 90 but greater than 0.
What is acute?
200
A polygon of 4 sides.
What is a quadrilateral?
200
A triangle with one angle greater than 90 degrees.
What is an obtuse triangle?
200
A triangle with no sides congruent.
What is a scalene triangle?
200
Two lines in the same plane that will never meet (intersect).
What is parallel?
200
An angle of 90 degrees.
What is a right angle?
300
A quadrilateral with both pairs of opposite sides parallel.
What is a parallelogram?
300
A triangle with one angle of 90 degrees.
What is a right triangle?
300
A triangle with all three sides congruent.
What is an equilateral triangle?
300
Two lines that will never meet that are NOT in the same plane.
What is skew?
300
An angle greater than 90 but less than 180.
What is obtuse?
400
A parallelogram with 4 congruent sides.
What is a rhombus?
400
A triangle in which all three interior angles are less than 90 degrees.
What is an acute triangle.
400
A triangle with all three angles congruent.
What is an equiangular triangle?
400
Two lines that meet to form a 90 degree angle.
What is perpendicular?
400
Two angles that add up to 180.
What is supplementary?
500
A parallelogram with 4 right angles.
What is a rectangle?
500
The longest side of a right triangle.
What is the hypotenuse?
500
Segment that connects the midpoints of two sides of a triangle.
What is a midsegment?
500
Polygon with all sides congruent and all angles congruent.
What is regular?
500
Two angles that add up to 90.
What is complementary?