Lesson 33: Geometry Flashcards

Front

Polygon

Back

A two-dimensional closed figure made with three or more straight line segments that do not cross over each other.

Front

Triangle

Back

A polygon with exactly 3 sides and 3 angles.

Front

Trapezoid

Back

A polygon with at least one pair of parallel sides.

Front

Hexagon

Back

A polygon with exactly 6 sides and 6 angles.

Front

Acute Triangle

Back

A triangle that has three acute angles.

Front

Right Triangle

Back

A triangle that has one right angle.

Front

Obtuse Triangle

Back

A triangle that has one obtuse angle.

Front

Equilateral Triangle

Back

A triangle that has all three sides the same length.

Front

Isosceles Triangle

Back

A triangle that has at least two sides the same length.

Front

Scalene Triangle

Back

A triangle that has no sides the same length.