Planning Zoo Habitats (Continued) Team G

Planning Zoo Habitats Team G Review Vocabulary Before You Start • area • perimeter You are part of a design team constructing a new primate • polygon habitat at a national zoo. Your goal is to prepare a spacious, stimulating environment for the primates. One of the proposed designs is shown in the diagram below.

Activity 3 You have to determine how much of each type of material you will need 5 to purchase to build the different areas of the primate habitat.

1. The observation rooms have a mural painted on the three exterior walls. The three interior walls are glass. a. What is the total length of the mural? ______

b. What is the total length of the glass walls in the observation rooms? ______

2. Hammock hill is a square lounging area for the primates and is connected to the outdoor play area. How much fencing is needed to enclose the two areas? There is no fencing between the two areas. ______

– grade 7 • Readiness Lesson

1 Planning Zoo Habitats (continued) Team G

You also need to compute the areas of each section of the habitat.

3. The floor of the observation rooms will be covered with tile. How many square feet of tile will you need to buy? ______

4. The shaded areas represent sections seeded with grass. Given the length of the indoor facilities is 160 feet, what is the total area that covered by grass? ______

5. The outdoor observation deck is a triangle. You are considering making it rectangular as indicated by the dashed line in the diagram. a. What is the square footage of the planned triangular observation deck? What is the square footage of the alternate observation deck? ______

b. You must allow 9 square feet per person, how many more people can the rectangular observation deck hold than the triangular observation deck? ______

6. Another change you are considering is to switch the food storage area with the smaller of the two observation rooms. The perpendicular distance between the two 55-foot walls of the current food storage area is 26 feet. With this change, how much more food storage space would there be? ______

7. QUICK REPORT Use your results from this activity to complete the report. Material Amount Needed Locations Fencing ft

Tile ft2

Grass seed ft2

8. REFLECT Explain how you used each skill in this activity. a. finding perimeters ______

b. finding areas ______

2 ANSWER KEY: Planning Zoo Habitats Team G Name ______Class ______Date ______G__

1. a. 268 ft b. 188 ft 2. 400 ft 3. 7,520 ft2 4. 20,964 ft2 5. a. 1,508 ft2; 3,016 ft2 b. 168 ft2 6. 1,770 ft2 7. Material Amount Needed Locations Fencing 400 ft Hammock hill & outdoor play area

Tile 7,520 ft2 Observation and exhibit rooms

Grass seed 6,884 ft2 Hammock hill & outdoor play area

8. Answers may vary. Sample answers are given. a. I found perimeters when I calculated the amount of fencing needed for Hammock hill and the outdoor play area. I also used the idea of perimeter to find the lengths of the murals and the glass walls in the observation rooms. b. I found area when I calculated the square feet of tile covering the floor of the indoor observation rooms. I also used area formulas to find areas of the observation decks and the food storage area.