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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

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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**1**Because these angles are equal. How many lines of symmetry has thisTrapezium got?**Properties of a Trapezium**• Has unequal sides • One pair of opposite sides are parallel • Usually has NO lines of symmetry • Is an irregular shape**Properties of a Kite**• Has 2 pairs of equal sides • Has 1 pair of equal angles • Equal sides are adjacent • Has 1 line of symmetry • Is an irregular shape**Quadrilaterals**Shapes with 4 sides!**Triangles**Shapes with 3 sides!**How many lines of symmetry has an Equilateral Triangle got?**1 2 3**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**Properties of an Isosceles Triangle**• Has 2 equal sides • Has 2 equal angles • Has 1 line of symmetry • Is an irregular shape**How many lines of symmetry has a Scalene Triangle got?**None!**Properties of an Scalene Triangle**• Has NO equal sides • Has NO equal angles • Has NO lines of symmetry • Is an irregular 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

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