Circle
A perfectly round shape with no corners or edges.
Properties:
- All points are equidistant from center
- No corners or edges
- Infinite lines of symmetry
- Circumference = 2πr
Square
A four-sided shape with equal sides and right angles.
Properties:
- Four equal sides
- Four right angles
- Four lines of symmetry
- Area = side × side
Triangle
A three-sided shape with three angles.
Properties:
- Three sides
- Three angles
- Angles sum to 180°
- Area = ½ × base × height
Rectangle
A four-sided shape with opposite sides equal and right angles.
Properties:
- Opposite sides equal
- Four right angles
- Two lines of symmetry
- Area = length × width
Pentagon
A five-sided shape with equal sides and angles.
Properties:
- Five equal sides
- Five equal angles
- Five lines of symmetry
- Sum of angles = 540°
Hexagon
A six-sided shape with equal sides and angles.
Properties:
- Six equal sides
- Six equal angles
- Six lines of symmetry
- Sum of angles = 720°
Oval
An elongated circle with two axes of symmetry.
Properties:
- No corners or edges
- Two axes of symmetry
- Two focal points
- Perimeter ≈ π(a + b)
Rhombus
A four-sided shape with equal sides and opposite angles equal.
Properties:
- Four equal sides
- Opposite angles equal
- Two lines of symmetry
- Area = base × height
Trapezoid
A quadrilateral with one pair of parallel sides.
Properties:
- One pair of parallel sides
- Sum of angles = 360°
- Area = ½ × (a + b) × h
- Two pairs of adjacent angles
Parallelogram
A quadrilateral with opposite sides parallel and equal.
Properties:
- Opposite sides parallel
- Opposite sides equal
- Opposite angles equal
- Area = base × height
Star
A five-pointed star with equal sides and angles.
Properties:
- Five points
- Five lines of symmetry
- Equal angles at points
- Golden ratio proportions
Octagon
An eight-sided shape with equal sides and angles.
Properties:
- Eight equal sides
- Eight equal angles
- Eight lines of symmetry
- Sum of angles = 1080°
Shape Quiz
Test your knowledge about shapes with this fun quiz!
Question 1: Which shape has no corners?
Real-World Shapes
Look around you! Can you spot these shapes in everyday objects?
Clock (Circle)
Window (Rectangle)
Pyramid (Triangle)
Chess Board (Square)