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Find the measure of ∠b ?

Find the measure of ∠b ?-example-1
User Kamla
by
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2 Answers

3 votes

Answer:

Explanation:

  • by inspection it is given that b and 81° are inside the parallel angles...
  • they are sorted such that now we know they are co-inter.. angles
  • b+81°=180 since co-inter... angles are supplementary
  • b=180°-81°
  • ∴b=99°
User Raphael Jeger
by
4.3k points
2 votes

Answer:

Below

Explanation:

b = 180 - 81° (because of the Z angle law)

b = 99°

User Davis Dimitriov
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4.4k points