Answer and Explanation
Your Answer is
Correct Answer is C
Explanation
The easiest way is to subtract the rectangular area of the indoor part from the large rectangular area with the walkway, that is, 30×36-30×24
Use the following information to answer questions 35-37.
The Smith family is planning to build a 3-room cabin which consists of 2 bedrooms (BR) and 1 living room (LR). Shown below are the rectangular floor plan (left figure) and a side view of the cabin (right figure). In the side view, the roof forms an isosceles triangle (△ABC) , the walls are perpendicular to the level floor (ED)，AC ∥ ED , F is the midpoint of AC and BF ⊥ AC .
During the week the Smiths plan to roof the cabin, there is a 20% chance of rain each day.
35. Mr. Smith plans to build a 3-foot-wide walkway around the outside of the cabin, as shown in the floor plan. What will be the area, in square feet, of the top surface of the walkway?