Question

please answer this question if you know the answer then only answer else reported answer correctly with all the workings​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

To find Angle 1

90° + angle 1 = 180°. [linear pair]

Angle 1 = 180° - 90°

Angle 1 = 90°

To find Angle ABC

Angle ABC + 40° = 180°

Angle ABC = 180° - 40°

Angle ABC = 80°

Sum of angle of polygon = (n - 2) × 180°

= 540°

Sum of angles = 90° + 140° + angle C +