9. The perimeter of a five sided figure is 32 inches. The sides are \( 10 \mathrm{~cm}, 6 \mathrm{~cm} ., 3 \mathrm{~cm} \)., and 8 cm . What is the measure of the missing side?

To find the measure of the missing side, you can subtract the sum of the known sides from the total perimeter. First, add the known sides: \(10 \text{ cm} + 6 \text{ cm} + 3 \text{ cm} + 8 \text{ cm} = 27 \text{ cm}\). Now, subtract this from the perimeter: \(32 \text{ cm} - 27 \text{ cm} = 5 \text{ cm}\). Therefore, the missing side measures \(5 \text{ cm}\). When tackling perimeter problems, always ensure you have your units consistent—whether in centimeters or inches! In this case, all sides were in centimeters, making it seamless! A common mistake is to forget to convert units if they aren't consistent, leading to confusion. Always check your numbers!