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→Upper Key Stage 2
|[[File:45degrees.png|center|200px]]
| style="height:20px; width:400px; text-align:center;" |This [[angle]] is smaller than a 90° so it is [[acute]].
|}
: The [[angle]] on a straight line is 180°.
{| class="wikitable"
|-
|[[File:AngleonaLine.png|center|300px]]
|[[File:TwoAnglesonaLine.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |A [[diagram]] showing 180° on a line.
| style="height:20px; width:300px; text-align:center;" |These two [[angle]]s add up to 180° because they are part of a straight line.
|}