Perimeter = 8*5.5 = 44 cm
Length + width = 18 cm so length = 12 cm and width = 6 cm. Presumably the length is the common side so the perimeter of the octagon is 8 x 12 = 96 cm. If the width is the common side then the perimeter of the octagon is 8 x 6 = 48 cm
32cm.
64 cm
Octagon: 8 sides; each side 12 cm; 12 x 8 = 96 cm
perimeter of octagon is 128 cm= 8 * side side of the octagon=128/8=16 cm
Providing that it is a regular octagon with 8 equals sides then its perimeter is 8 time 8 = 64 cm
The perimeter is 8*505 = 44 cm.
Perimeter = 8*5.5 = 44 cm
Length + width = 18 cm so length = 12 cm and width = 6 cm. Presumably the length is the common side so the perimeter of the octagon is 8 x 12 = 96 cm. If the width is the common side then the perimeter of the octagon is 8 x 6 = 48 cm
32cm.
64 cm
Perimeter = 8*7 = 56 cm
Perimeter = 8*15 = 120 cm
If a regular octagon has a perimeter of 40cm, then each side is 5 cm.
pentagon
Octagon: 8 sides; each side 12 cm; 12 x 8 = 96 cm