A gymnasium is 45 ft long, 30 ft wide, and 14 ft high (tall). The school is painting the walls and the ceiling of the gym. Find the area of the painted parts of the gym.
First, calculate the area of the four walls:
The two longer walls have a length of 45 ft and a height of 14 ft:
2 * 45 ft * 14 ft = 1260 sq ft
The two shorter walls have a length of 30 ft and a height of 14 ft:
2 * 30 ft * 14 ft = 840 sq ft
Now, calculate the area of the ceiling:
45 ft * 30 ft = 1350 sq ft
Add the areas of the walls and ceiling to find the total painted area:
1260 sq ft + 840 sq ft + 1350 sq ft = 3450 sq ft
So, the total area of the painted parts of the gym is 3450 square feet.