Her Monica, his 14th birthday she wants to make over her bedroom. The first phase in the bedroom makeover is painting her room if Monica‘s room is 20 feet long, 15 feet wide and 9 feet high find the surface area of the room that you were going to paint including the floor and ceiling
To find the surface area of the room that needs to be painted, we first need to calculate the surface area of all the walls, the ceiling, and the floor.
Walls:
2 walls are 20 feet by 9 feet = 2 x 20 x 9 = 360 square feet
2 walls are 15 feet by 9 feet = 2 x 15 x 9 = 270 square feet
Ceiling:
20 feet by 15 feet = 20 x 15 = 300 square feet
Floor:
20 feet by 15 feet = 20 x 15 = 300 square feet
Total surface area to paint:
360 + 270 + 300 + 300 = 1230 square feet
Therefore, the surface area of the room that needs to be painted, including the walls, ceiling, and floor, is 1230 square feet.