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| PAGE: 11 | SET: Exercises | PROBLEM: 10 |
Acute and obtuse angles :
Angles that measure between 
and 
are called acute angles, while angles that measure between 
and 
are called obtuse angles.
Complement and supplement of angle :
If two angles have a sum of , then they are called complementary angles, and said each is the complement of the other. Two angles with a sum of 
are called supplementary angles.
The angle is 
.
Since the angle 
is between 
and , the angle is an acute angle.
The complement of is 
since 
.
The supplement of is 
since 
. 
Acute, complement is 
, supplement is 
.
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