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Geometry terms (1N1)
Meaning of geometrical terms.
Term | Description |
---|---|
Square | Has 4 sides and all are of equal length. It also has 4 right angles. |
Rectangle | Has 4 sides and has 4 right angles. Opposite sides are equal and are parallel to each other. |
Parallelogram | Has 4 sides and opposite sides are equal and parallel. Opposite angles are equal. |
Trapezium | Has 4 sides and opposite sides are parallel. |
Triangle | A shape with 3 sides and 3 angles. |
Circle | Has a round shape. |
Diagonal | A line joining 2 corners which are NOT next to each other. |
Equal | 2 things with the same value. |
Pi | It has an approximate value of 3.142 and is represented by the symbol, π |
Diameter | A line passing through the centre of a circle. Its two ends are on the circumference of the circle. |
Radius | A line drawn from the centre of a circle to its circumference. |
Height | A line drawn from the top to the base of a figure. It makes 90° with the base. |
Base | Can be one side of a plane figure or the bottom of a solid. |
Perimeter | The distance around the edge of a given shape. |
Circumference | The distance around a circle. |