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Angles
Angles
6.1
Angles
Angle Definition
The space (usually measured in degrees) between two lines or surfaces that intersect at or near the point where they meet.
Right Angle
The exact angle is 90
$\xb0$
.
Only right angles have a small square between the two lines.
Acute Angle
An angle smaller than a right angle.
An acute angle is an angle smaller than 90
$\xb0$
(< 90
$\xb0$
).
Obtuse Angle
An angle greater than a right angle.
Angle of deflection exceeds 90
$\xb0$
but does not exceed 180
$\xb0$
(90
$\xb0$
< obtuse angle < 180
$\xb0$
).
Reflex Angle
An angle greater than the obtuse angle.
The reflex angle exceeds 180
$\xb0$
but does not exceed 360
$\xb0$
(180
$\xb0$
< reflex angle < 360
$\xb0$
).
Chapter : Space
Topic : Angles
Year 6
Mathematics
View all notes for Mathematics Year 6
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