These lines are parallel lines. , This is a Right Angle. , Set Squares help us to draw Right Angles.  , An Obtuse Angle is more than a Right Angle. , Perpendicular lines form a Right Angle., We can see perpendicular lines in window panes. , A Right Angle is formed in the clock with its two hands. , The Pizza slice looks like an Acute Angle or an angle smaller than a Right Angle. , Two straight sides of an angle are called Arms.  , This is a Straight Angle. ,

Angles and Lines

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