Question

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Answer 1

Step-by-step explanation:

if each interior angle is 120 then each exterior angle will 60. As we know that sum of exterior angle of polygon =360, side =360/60=6 . the number of sides=6.

Answer 2

Answer:

a) 5 sides.

b) 27 × 19 = 513 cm square.

Step-by-step explanation:

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