What are the sizes of angles a, b, c and d?

Answer:
a = 26°
b = 48°
c = 26°
d = 106°
Step-by-step explanation:
[tex]c + {154}^{o} = {180}^{o} \\ c = {180}^{o} - {154}^{o} \\ c = {26}^{o} [/tex]
a = c (Alternate angles)
[tex]a = {26}^{o} [/tex]
[tex]b = {48}^{o} [/tex]
Corresponding angles
(a + d) + b = 180° (Interior angles)
[tex]{26}^{o} + d + {48}^{o} = {180}^{o} \\ d + {74}^{o} = {180}^{o} \\ d = {180}^{o} - {74}^{o} \\ d = {106}^{o} [/tex]