Grade 4 - Progress in Mathematics

20 Geometry I

Perimeter

0 7. a polygon whose sides 0 8. a polygon whose sides measure 100 ft, 142 ft, measure 92 m, 109 m, 68 ft, and 127 ft and 92 m

Find the perimeter of the figure below.

To find the perimeter of a figure, add the lengths of its sides.

Perimeter is the distance around a figure.

100 ft

75 ft

50 ft 60 ft

Find the perimeter of each figure.

14 cm

22 cm 24 cm

8 m 7 m 7 m

7 m 7 m 8 m

12 m 12 m

60 yd

50 yd 50 yd

15 ft

23 ft

42 ft 30 ft 4 m

4 m

4 m 3 m 2 m 9 ft

9 ft 13 ft

100 ft 60 ft 75 ft 50 ft 285 ft

8204-6_1-27 1/10/06 8:09 AM Page 20