The measure of the angles are;
d = 90 degrees
f = 46 degrees
To determine the measure of the missing angles, we need to know that;
- Alternating angles are equal
- Vertically opposite angles are equal
- Angles on a straight line is equivalent to 180 degrees
- Angle at right angle is 90 degrees
Then, we have that;
e + f = 180
but then, e = 134 degrees
Substitute the value
f = 180 - 134
f = 46 degrees
D = right angle = 90 degrees