hrideshbhunjun17
hrideshbhunjun17 hrideshbhunjun17
  • 01-06-2020
  • Mathematics
contestada

Please help me!!
Show workings.

Please help me Show workings class=

Respuesta :

fatemehkorea
fatemehkorea fatemehkorea
  • 01-06-2020

Answer:

a = 31°

b = 149°

c = 149°

d = 31°

Answer Link
jimrgrant1 jimrgrant1
  • 02-06-2020

Answer:

see explanation

Step-by-step explanation:

Since there are 3 parallel lines, then

a and 31° are corresponding angles and congruent, thus

a = 31°

b and 31° are same- side interior angles and supplementary, thus

b = 180° - 31° = 149°

c and b are vertical angles and congruent, thus

c = 149°

d and 31° are alternate angles and congruent, thus

d = 31°

a = 31°, b = 149°, c = 149°, d = 31°

Answer Link

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