Question

Jamin wants to paint a wall in his bedroom. In order to know how much paint to buy, he first needs to know the approximate area. There is a window in the middle of the wall, so he'll only need to paint the shaded part shown. How many square feet is Jamin planning to paint? [Note: The wall and window are both rectangular.]
48 ft 2

45 ft 2

11 ft 2

28 ft 2

Answer 1

Given:

Length of the wall = 8 ft

Width of the wall = 6 ft

Length of the window = 2 ft

Width of the window = 18 in

To find:

The square feet Jamin planning to paint

Solution:

Area of the wall = length × width

                           = 8 × 6

Area of the wall = 48 ft²

Width of the window = 18 in

Convert inch to feet.

1 feet = 12 inch

18 inch = $\frac{18}{12}=1.5$ ft

Area of the window = length × width

                                 = 2 × 1.5

Area of the window = 3 ft²

Area to be painted = Area of the wall - Area of the window

                                = 48 ft² - 3 ft²

                                = 45 ft²

Therefore Jamin planning to paint 45 ft².