A restaurant dining space and hallway is shown in the diagram below. This area of the restaurant will have 12-foot ceilings. b MY NOTES ASK a 1 m Step 1. Calculate the total volume of the dining area and hallway in cubic feet. (Assume a = 6.4 m, b = 8.4 m, and c = 12.1 m. Use 1 ft = 0.3048 m for your conversion. Remember to do the conversion for each dimension as we showed in class. Round your answer to the nearest hundred not hundredth. Volume of the space: ft Step 2. The design calls for 11 air changes per hour. Calculate the total air flow in CFM (cubic feet per minute) needed to meet the air change requirements for the space. Round to the nearest hundred CFM. Airflow required: CFM Step 3. The design of the duct work specifies an air speed of 275 ft/min. Use the formula airflow = duct area x air speed -to find the duct area needed. Round your answer to the nearest tenth.) duct area: sa ft