Answer:
Width = 4 cm
Explanation:
- We know that the formula for perimeter (P) of a rectangle is P = 2l + 2w,
- where l is the length
- and w is the width.
- Since we're already given the perimeter and the length, we can solve for width by plugging in the values for perimeter and length in the equation and solve for w:
40 = 2(16) + 2w
40 = 32 + 2w
8 = 2w
4 = w
We can check that our answer is correct by plugging in 16 for l and 4 for w in the formula and check that we get 40:
40 = 2(16) + 2(4)
40 = 32 + 8
40 = 40