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Subjects
Mathematics State Board
Class 9
Geometry
Basics of geometry
1.
Classify the angle
Exercise condition:
2
m.
Examine and find out:
1)
If a perpendicular line bisects a given line, you would have two
right angles
straight angles
reflex angles
acute angles
.
2)
An angle with measure \(106°\) is called
acute angle
straight angle
right angle
obtuse angle
.
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