a closed figure with straight lines
a polygon with 3 sides
Angles of a triangle
the sum of the measures of the angles of any triangle is 180 degrees
a polygon with no sides equal
a polygon with 2 sides equal
a polygon with all sides equal
a triangle with all 3 angles less than 90 degrees
a polygon with all angles equal
a triangle with one obtuse angle
a triangle with one right angle
a polygon with 4 sides
a quadrilateral with opposite sides parallel
a parallelogram with 4 right angles
a rectangle with all sides congruent
a parallelogram with all sides congruent
a quadrilateral with one pair of parallel sides
a quadrilateral with neighboring sides congruent
a polygon with 5 sides
a polygon with 6 sides
a polygon with 7 sides
a polygon with 8 sides
a polygon with 9 sides
a polygon with 10 sides
a polygon with 12 sides
a polygon with 20 sides
polygons that are the same size and same shape
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