We can determine the values of the angles as follows:
*By opposite by angle we will have that angle f is equal to:

angle f has a measurement of 58°.
*By supplementary angles we will have that angle e is equal to:

angle e has a measurement of 26°.
*As is indicated (Two lines have the same markings indicating they are parallel) we will have that the measurement of angle b is 78°.
*By complementary angles, the measurement of angle a is:

angle a has a measurement of 102°.
*We will have by alternate exterior angles that c has a measurement of 58°.
*By supplementary angles, we will have that the measurement of angle d equals:

angle d has a measurement of 122°.