1. Use the height and weight , in household units, of someone yourself, family member, friend, celebrity , or sports star. 2. Show and explain how to find the height in inches only. Use Dimensional Analysis to show how to convert the height to centimeters ( cm). Round to the nearest tenth. Use Dimensional Analysis to show how to convert the weight in pounds () to kilograms (kg). Round to the nearest tenth. Find the Body Surface Area (BSA) using the household units formula ( page 152)Round the BSA to the nearest hundredth. Find the Body Surface Area (BSA) using the metric units formula ( page 152). Round the BSA to the nearest hundredth.