What is the perimeter, in centimeters, of a rectangle that has a length of 4 centimeters and a width of 15 millimeters? 38 cm 19 cm 5.5 cm 11 cm

So remember you can calculate the perimeter of a rectangle using this formula: 2l + 2w (The rectangle has two long sides-which give you length, and two short sides, which give you width). Since you're given length and width, substitute the values into the equation:

2 (4 cm) + 2 (15 cm) = ?

You should get your perimeter by solving that.