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maths
angles
| Term | Definition |
|---|---|
| acute angle | an angle less than 90 degrees |
| obtuse angle | an angle between 90 and 180 degrees |
| reflex angle | an angle between 180 and 360 degrees |
| ordinary angle | an angle less than 180 degrees |
| vertically opposite | these angles are equal in measure |
| angles at a point add up to.. | 360 degrees |
| corresponding angles | are equal |
| alternate angles | are equal |
| interior angles | sum up to 180 degrees |
| the angles of a triangle add up to... | 180 degrees |
| the exterior angle is equal to... | the sum of the interior opposite angles |
| each angle in an equilateral triangle is.. | 60 degrees |
| a right angled triangle has... | an angle of 90 degrees |
| in a square each angle is.. | 90 degrees (right angle) |
| in a rectangle each angle is.. | 90 degrees (right angle) |
| in a parallelogram opposite angles are... | equal |
| in a rhombus opposite angles are... | equal |