Angle Relationships. 90 degree angle:. 180 degree angle:. 90 and 180 degree angles……. Acute – angles less than 90 degrees. Right – angles with exactly 90 degrees. Types of angles……. Obtuse – angles greater than 90 degrees but less than 180 degrees.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
90 degree angle:
180 degree angle:
Acute – angles less than 90 degrees.
Right – angles with exactly 90 degrees.
Obtuse – angles greater than 90 degrees but less than 180 degrees.
Straight – angles that are 180 degrees and form a line.
If 2 segments are perpendicular to each other, then they form a 90 degree angle.
The symbol for perpendicular is an upside down T.
Vertical Angles are two non-adjacent angles formed by intersecting lines.
Vertical Angles are congruent. (Equal)
Find the value of x.
Linear Pair – a pair of adjacent angles whose non-common sides form opposite rays.
∠1and ∠2form a linear pair.
A linear pair is supplementary – the angle measures
add up to 180 degrees.