What is the measure of each angle in a regular polygon with 9 sides?

To find the measure of each angle in a regular polygon, you can use the formula (n-2) * 180 / n, where n is the number of sides.

Step 1: Substitute the number of sides (n = 9) into the formula.

Step 2: Calculate the value inside the brackets first, which is (9-2) = 7.

Step 3: Multiply this value by 180, which gives 7 * 180 = 1260.

Step 4: Finally, divide this result by the number of sides, which gives 1260 / 9 = 140.

So, the measure of each angle in a regular polygon with 9 sides is 140 degrees.