Quadrilaterals
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18 Terms
A parallelogram is...
a quadrilateral with TWO PAIRS of parallel sides
A quadrilateral is...
a polygon with 4 sides, 4 vertices, and 4 angles
A rectangle is...
a parallelogram with 4 right angles and opposite equal sides
A rhombus is...
a parallelogram with 4 equal sides and no right angles
A square is...
a parallelogram with 4 right angles and 4 equal sides
A right angle is...
an angle that measures 90 degrees
An acute angle is...
an angle that measures less than 90 degrees
An obtuse angle...
an angle that measures more than 90 degrees
Parallel lines are...
two lines that will never intersect
Perpendicular lines are...
two lines that intersect at a right angle
A trapezoid is...
a quadrilateral with only ONE PAIR of parallel sides
A vertex is...
the place, or corner, where two sides meet
A polygon is...
a figure with straight, closed sides
What is a diagonal bisector?
It is a line that divides a diagonal of a polygon into two equal parts.
What is a synonym for congruent?
Equal
Every quadrilateral has _______ degrees.
360
Do all parallelograms have diagonal bisectors?
Yes
A rhombus always has 90 degree angles.
No