Angle as a measure of turn

Angle is a measure of turn: a right angle is a quarter turn. Plenty of turning in this set of angle worksheets!

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An acute angle is greater than zero degrees and less than 90 degrees. An obtuse angle is greater than 90 degrees but less than 180 degrees.

Recognising acute, obtuse and right angles.

A look at quarter, half and three-quarter turns.

More on quarter, half and three-quarter turns.

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