Question

Please solve this question .

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Answer 1

Answer:

angle1 = x + 15 (alternate angles).

x+15 = 85

x = 85-15 = 70°

(x+15) + (y+20) = 180°

85° + y+ 20 = 180°

y + 105° = 180°

y = 180° - 105°

y = 75°

Also, y = z = 75° (opposite angles of a parallelogram).