Basic Shapes
This shape has no flat sides, but has the same radius all the way around.
Circle
All 3 angles are the same and all 3 sides are the same length.
Equilatral Triangle
This quad has 4 sides that are the same length AND 4 right angles.
Square
This polygon has 6 sides.
Hexagon
The angles are all 90 degrees, and it's opposite sides are equal
Rectangle
This shape has 3 angles and 3 sides.
Triangle
This one has 2 equal sides and 2 equal angles.
Isosceles triangle
This quad has only 1 set of parallel lines.
Trapazoid
This polygon has the same number of sides as the number of fingers on 1 hand.
Pentagon
This has two sets of parallel lines and equal OPPOSITE angles.
Rhombus
This is a quadrilateral that has all 4 sides the same length.
Square
Acute triangle
This one has 2 sets of parallel lines.
Parallelogram
This has the same number of sides as the number of toes on 2 regular feet.
Decagon
A polygon that has inside angles of 120 degrees.
REGULAR hexagon
This has 4 sides and 4 right angles, but does not have 4 equal sides.
This triangle has one angle that is exactly 90 degrees.
Right triangle
This has 4 equal sides and 4 equal angles, but is NOT a square.
Rhombus
This is the shape of a stop sign.
Octagon
This shape has 2 pair of equal sides, but the are NOT on opposite sides of the shape.
Kite
Any closed, 4-sided shape.
Quadrilateral
This triangle has two acute angle and one angle that is greater than 90 degrees.
Obtuse triangle
This is a quadrilateral that has NO equal sides and NO equal angles.
Trapezium
This polygon has a dozen sides.
Dodecahedron
When a polygon has all of its inside angles the same, it is called this.
Regular