Find the perimeter of the
rectangle using the formula.
4.2
6.7
· perimeter = 2l + 2w

21.8

Step-by-step explanation:

2(4.2)+2(6.7)=8.4+13.4=21.8

(2x4.2) + (2x6.7) = 8.4 + 13.4 = 21.8

We are given dimensions of the rectangle:

Length= 4.2 units  and width = 6.7 units .

Given formula of perimeter = 2L + 2W.

Plugging value of Length= 4.2 and width = 6.7 in above formula, we get

Perimeter = 2(4.2) + 2(6.7)

Multiplying 2 * 4.2 we get 8.4 and multiplying 2* 6.7 we get 13.4.

                = 8.4 + 13.4.

                = 21.8 units