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All about Shapes. Ask Boffin!. Properties of Shapes. Number of sides Number of angles Number of lines of symmetry Regular or irregular Right Angles Parallel lines. Shapes. Triangles. Quadrilaterals. Polygons. Regular Shapes. Key Words. Quadrilaterals. Shapes with 4 sides!.
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All about Shapes Ask Boffin!
Properties of Shapes • Number of sides • Number of angles • Number of lines of symmetry • Regular or irregular • Right Angles • Parallel lines
Shapes Triangles Quadrilaterals Polygons Regular Shapes Key Words
Quadrilaterals Shapes with 4 sides!
Properties of a Square • Has 4 equal sides • Has 4 equal angles • Each angle is a right angle • Has 4 lines of symmetry • Is a regular shape
Properties of a Rectangle • Has 2 pairs of equal sides • Has 4 equal angles • Each angle is a right angle • Has 2 lines of symmetry • Is an irregular shape
Properties of a Parallelogram • Has 2 pairs of equal sides • Has 2 pairs of equal angles • Opposite sides are parallel • Has NO lines of symmetry • Is an irregular shape
Properties of a Rhombus • Has 4 equal sides • Has 2 pairs of equal angles • Opposite sides are parallel • Has 2 lines of symmetry • Is an irregular shape
Properties of a Trapezium • Has unequal sides • One pair of opposite sides are parallel • Usually has NO lines of symmetry • Is an irregular shape
Quadrilaterals Shapes with 4 sides!
Triangles Shapes with 3 sides!
Properties of an Equilateral Triangle • Has 3 equal sides • Has 3 equal angles • Each angle is a 60o angle • Has 3 lines of symmetry • Is a regular shape
A Right Angled Triangle is different It may be scalene or it may be isosceles But it always has a right angle!
Properties of a Right Angled Triangle It will be isosceles and have 1 line of symmetry when these 2 sides are equal. • Has 1 right angle • May be an isosceles triangle • May have 1 line of symmetry • Is an irregular shape
Triangles Shapes with 3 sides!
Key Words • Regular Shape • Parallel • Perpendicular • Vertex • Diagonal • Bisect
Regular Shape Shapes are regular when • All their sides are the same length • All their angles are the same size
Polygons Shapes with many sides!
Properties of a Regular Hexagon • Has 6 equal sides • Has 6 equal angles • Has 6 lines of symmetry
Properties of a Regular Pentagon • Has 5 equal sides • Has 5 equal angles • Has 5 lines of symmetry
Polygons Shapes with many sides!
Regular shapes • All the sides are the same length • All the angles are equal • Have the same number of lines of symmetry as the number of sides