Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Find the perimeter of each figure.

7. 
8. 
9. Fencing A garden that is 5 ft by 6 ft has a walkway 2 ft wide around it. What is the amount of fencing needed to surround the walkway?

See Problem 2.

Find the circumference of ⊙ C circle dot c  in terms of π.

See Problem 3.

Coordinate Geometry Graph each figure in the coordinate plane. Find each perimeter.

14. X ( 0 , 2 ) , Y ( 4 , − 1 ) , Z ( − 2 , − 1 ) x open 0 comma 2 close comma y open 4 comma negative 1 close comma z open negative 2 comma negative 1 close
15. A ( − 4 , − 1 ) , B ( 4 , 5 ) , C ( 4 , − 2 ) eh open negative 4 comma negative 1 close comma b open 4 comma 5 close comma c open 4 comma negative 2 close
16. L(0, 1), M(3, 5), N(5, 5), P(5, 1)
17. S ( − 5 , 3 ) , T ( 7 , − 2 ) , U ( 7 , − 6 ) , V ( − 5 , − 6 ) s open negative 5 comma 3 close comma t open 7 comma negative 2 close comma u open 7 comma negative 6 close comma v open negative 5 comma negative 6 close

See Problem 4.

Find the area of each rectangle with the given base and height.

18. 4 ft, 4 in.
19. 30 in., 4 yd
20. 2 ft 3 in., 6 in.
21. 40 cm, 2 m
22. Roads What is the area of a section of pavement that is 20 ft wide and 100 yd long? Give your answer in square feet.

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