42cm
A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.
Perimeter = 4 * side = 4* 8 = 32cm
P = 48cm
56 cm
It is: 7+8+12 = 27 cm
A square of perimeter 32cm has 4 sides of length 8cm. Area = Side1*Side2 Area = 8cm*8cm Area=64cm2
Divide the perimeter length by 4 ie 8cm and square the result ie 8cm x 8cm = 64sq cm
42cm
A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.
P = 48cm
56 cm
Perimeter = 4 * side = 4* 8 = 32cm
64cm (8cm x 8 sides = 8 x 8 = 64).
The perimeter would be 8 + 9 + 10 = 27cm
The perimeter is 3 times 8 = 24 cm
8cm.