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Geometry terms (1N1)

Meaning of geometrical terms.

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.
Created by: edugan_hoh