# Sun Space

## Solution

Charlie should order 22 boxes of floor tiles.

## Explanation

### Step 1

Draw a diagram of the space.

### Step 2

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.

Use the formula A = bh.

A = 20 x 8

Area of triangle AED = 80 ft² - Add the areas of ABCE and AED.

160 ft² + 80 ft²= 240 ft²

### Step 3

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.
- Divide. 264 tiles ÷ 12 = 22 boxes of tiles