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BBC2 年

Drawing and measuring angles - KS3 Maths - BBC Bitesize

An acute angle is less than 90°. An obtuse angle is between 90° and 180°. A reflex angle is between 180° and 360°. The size of an angle can be estimated without using a protractor.
BBC1 年

Measuring angles - KS2 Maths - Year 5 - BBC Bitesize

Discover how to measure angles using a protractor with this Year 5 article from BBC Bitesize.