Question

Bob is designing a deck for his new home, shown below in the darkened region. How many square feet of decking will he need to complete his project? Round your answer to the nearest whole number. Do not include units in your answer.

Answer 1

100 square feet of decking

Explanation:

The picture of the question in the attached figure

we know that

To find out the square feet of decking needed, subtract the area of the interior rectangle of the figure from the area of the complete rectangle

so

`A=(18)(10)-(10)(8)=180-80=100\ ft^2`