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GuDViN [60]
3 years ago
6

Please help me!! Show workings.

Mathematics
2 answers:
inysia [295]3 years ago
8 0

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°

SCORPION-xisa [38]3 years ago
4 0

Answer:

a = 31°

b = 149°

c = 149°

d = 31°

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