Explanation:
The correct expression to find each angle measure of a regular polygon with 28 sides is:
[(28-2) x 180] ÷ 28
This formula represents the interior angle of a regular polygon, which can be calculated by subtracting 2 from the number of sides (in this case, 28), multiplying the result by 180 degrees, and dividing by the number of sides. So:
[(28-2) x 180] ÷ 28 = (26 x 180) ÷ 28
Therefore, only option (2) is correct.