In the following diagram, name:

a pair of complementary angles.

 

In the following diagram, name:

a pair of equal angles.

In the following diagram, name:

a pair of supplementary angles.

In the following diagram, name:

the angles on line $DG$.

In the following diagram, name:

the complement of angle $EBF$.

In the following diagram, name:

the supplement of angle $EBC$.

In the diagram, find the value of the angle marked with a letter.

In the diagram, find the value of the angle marked with a letter.

In the diagram, find the value of the angle marked with a letter.