GED Math : 2-Dimensional Geometry
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Example Questions
Example Question #11 : Complementary Angles
If the angles 
Complementary angles add up to 90 degrees.
Set up the equation such that both angles add up to 90.
Divide by 6 on both sides.
The smallest angle is 
Substitute the value of 
The answer is:
Example Question #12 : Complementary Angles
Suppose the angles 
Complementary angles add up to 90 degrees.
Set up the equation to solve for 
Combine like-terms.
Subtract 6 from both sides.
Divide by three on both sides.
This means that 
The answer is:
Example Question #13 : Complementary Angles
What angle is complement to the angle 
Note that complementary angles sum up to 90 degrees. There is no 
To determine the other angle, simply subtract the angle from 90 degrees.
The answer is:
Example Question #11 : Complementary Angles
Which angle is complementary to the angle 
Complementary angles sum up to 90 degrees.
To find the other angle, subtract 62 from the value of 90.
The answer is:
Example Question #15 : Complementary Angles
The angles above are complementary.
What is the measure of the smaller angle?
Since the angles are complementary, you know that they must add up to a total of 
Simplifying, you get:
The smaller angle clearly is 
Example Question #16 : Complementary Angles
The angles above are complementary.
What is the size of the larger angle?
Since the angles are complementary, you know that they must add up to a total of 
Simplifying, you get:
It is best to compute both angles to be safe:
This means that the other is 
Example Question #12 : Complementary Angles
Complementary angles add up to how many degrees?
Two angles are complementary when they add up to 
Example Question #18 : Complementary Angles
Angles a and b are complementary. If 
Two angles are complementary when they add up to 
Now, we know
So, we will substitute and solve for b. We get
Example Question #19 : Complementary Angles
If two angles are complementary, and one angle is 
Two angles are complementary if they add up to 
Now, we know the value of one angle is 
Now, we will solve for b. We get
Therefore, the value of the other angle is 
Example Question #13 : Complementary Angles
What angle is complementary to 
Complementary angles sum up to 90.
This means that the other angle must be the difference from 90.
Combine like-terms.
The answer is:
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