Charlie should order 22 boxes of floor tiles.
Draw a diagram of the space.
Find the area of the space. Separate the space into a triangle and a rectangle.
- Find the area of ABCE.
Use the formula A = lw.
A = 20 ft x 8 ft
Area of rectangle ABCE = 160 ft2
- Find the area of the triangle AED.
se the formula A = bh.
A = 1/2 20 x 8
Area of triangle AED = 80 ft2
- Add the areas of ABCE and AED.
160 ft2 + 80 ft2= 240 ft2
Find how many tiles are needed.
- 1 tile = 1 square foot
This means that for each square foot of floor space, Charlie needs 1 tile.
For 240 ft2 of floor space, Charlie will need 240 tiles.
- Add 2 dozen extra tiles for replacements.
240 tiles + 24 tiles = 264 tiles
- The tiles come in boxes of a dozen.
264 tiles ÷ 12 = 22 boxes of tiles