# Two angles are congruent and complementary. What is the measure of each angle?

If two angles are congruent and complementary, each angle measures 45 degrees.

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Congruent angles have the same measurement (are the same size). If

#mangle1=x#

#mangle2=x#

holds true.

Complementary angles have a sum of

#mangle1+mangle2=90#

Substitute the equivalent forms of these angle measurements

#x+x=90#

Solve algebraically.

#2x=90#

#x=45#

Each angle is

Since complementary angles' sum is

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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