Question

A rectangle has a lengths and width of twelve and eight units, respectively. Using only multiplication show in a diagram which of the solutions below represent the perimeter of the entire rectangle

96 units
384 units
None of these
20 units
40 units
192 units

Answer 1

40 units

Explanation:

lengths:

12+12=24

width:

8+8=16

perimeter:

2l+2w

2(12)+2(8)

24+16=40