3 years ago

A) Work out the size of angle x.

Mathematics

1 answer:

vazorg [7]3 years ago

7 0

Answer:

x = 80

Step-by-step explanation:

∠ ABC and ∠ DBC are adjacent angles and supplementary, thus

∠ ABC = 180° - ∠ DBC = 180° - 100° = 80°

∠ EFB = x = ∠ ABC = 80° ( corresponding angles )

Thus x = 80

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