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Published byRebecca Powers Modified over 4 years ago

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Objective: To describe properties of solid shapes such as perpendicular and parallel lines, faces and edges

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PART 1 SOLID SHAPES

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**Two-dimensional Shapes (2D)**

These shapes are flat and can only be drawn on paper. They have two dimensions – length and width. They are sometimes called plane shapes.

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**Three-dimensional Shapes (3D)**

These shapes are solid or hollow. They have three dimensions – length, width and height.

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**Face Part of a shape that is flat.(Or curved) E.g. A cube has 6**

of these.

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Edge The line where two faces meet. E.g. A cube has 12 of these.

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**Vertex (Vertices) The place where three or more edges meet.**

This pyramid has 4 of these.

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Parallel These type of lines stay the same distance apart for their whole length. They do not need to be straight or the same length.

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**Perpendicular A line that is drawn in a right angle to another line .**

In solid shapes edges could be at a right angle to one another. Faces could also be at right angles to one another.

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Cube A three-dimensional shape which has 6 square faces all the same size. Some faces parallel Some edges parallel Some faces perpendicular Some edges perpendicular

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**Cuboid A three-dimensional shape which has 6 rectangular faces.**

Some faces parallel Some edges parallel Some faces perpendicular Some edges perpendicular

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Sphere A perfectly round three-dimensional shape, like a ball. It has only one curved face. No parallel faces or edges No perpendicular faces or edges

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**Hemisphere A three-dimensional shape that is half a sphere.**

No parallel faces or edges No perpendicular faces or edges

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Cone A three dimensional shape with a circle at its base and a pointed vertex. No parallel faces or edges No perpendicular faces or edges

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**Cylinder A three-dimensional shape with circular ends of equal size.**

Some faces parallel Some edges parallel Some faces perpendicular No edges perpendicular

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Pyramid A three-dimensional shape which has a polygon for its base and triangular faces which meet at one vertex. E.g. Triangular pyramid Square pyramid Hexagonal pyramid Pentagonal pyramid

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**Square base pyramid No faces parallel Some edges parallel**

No faces perpendicular Some edges perpendicular

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Prism A three dimensional shape that has the same cross-section all along its length.

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**Written task Cube Cuboid Cone Square based- Pyramid Sphere Hemispere**

SOME PARALLEL FACES NO PARALLEL FACES Cube Cuboid SOME PERPENDICULAR FACES Cone Square based- Pyramid Sphere Hemispere NO PERPENDICULAR FACES

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**Written task Cube Cuboid Square-based pyramid Sphere Hemisphere Cone**

SOME PARALLEL EDGES NO PARALLEL EDGES Cube Cuboid Square-based pyramid SOME PERPENDICULAR EDGES Sphere Hemisphere Cone NO PERPENDICULAR EDGES

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PART 2 PLANE SHAPES

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Polygons Two-dimensional shapes that have sides made from straight lines. E.g. triangles squares hexagons

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**Quadrilaterals Any two-dimensional shapes with four straight sides.**

E.g. square rhombus rectangle trapezium kite

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Rectangle A four sided two-dimensional shape with two pairs of parallel sides that meet at right angles.

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Kite A two-dimensional shape with two shorter sides of equal length and two longer sides of equal length.

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Rhombus A two-dimensional four sided shape with opposite sides that are parallel and all the sides are the same length.

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Trapezium A two-dimensional shape with four sides.One pair of sides is parallel with one side longer than the other.

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Pentagon A two-dimensional shape with five straight sides and five angles.

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Hexagon A two-dimensional shape with 6 straight sides and 6 angles.

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Octagon A two-dimensional shape with 8 straight sides and 8 angles.

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**What do we call a shape with: 7 Sides? 9 Sides? 10 Sides?**

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Circle A round flat two-dimensional shape.

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Square Two dimensional shape with 4 sides of the same length and 4 90° angles.

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Triangle Two-dimensional shape with three straight sides and three angles. Can you name 4 different kinds?

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Geometry Chapter 20. Geometry is the study of shapes Geometry is a way of thinking about and seeing the world. Geometry is evident in nature, art and.

Geometry Chapter 20. Geometry is the study of shapes Geometry is a way of thinking about and seeing the world. Geometry is evident in nature, art and.

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