Question

Pls tell if you know the answer ​

Answer 1

Answer:

a= 50 degrees and b = 50 degrees both are equal

Step-by-step explanation:

a= 180 - 130 = 50 (linear pair)

b= 180 - 80 + 50 = 180 - 130 = 50 (interior angle sum property)

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Answer 2

Answer:

angle A = 50°

angle ACB = 50°

Step-by-step explanation:

exterior angle = sum of opposite interior angles

130° = 80° + angle A

angle A = 130° - 80°

angle A = 50°

sum of angles of triangle = 180°

angle A + 80° + angle ACB = 180°

angle ACB = 180° -( 80° + 50°)

angle ACB = 180° - 130°

= 50°