Answer:
w = 3.2 cm
Step-by-step explanation:
Perimeter of a rectangle = 2(l + w)
Given values:
Substitute the given values into the formula and solve:
39.2 = 2(16.4 + w)
39.2 = 2(16.4 + w)
39.2 = 32.8 + 2w
39.2 - 32.8 = 32.8 - 32.8 + 2w
6.4 = 2w
6.4 / 2 = 2w / 2
3.2 = w
Check your work:
39.2 = 2(16.4 + 3.2)
39.2 = 2(19.6)
39.2 = 39.2 ✅
Final answer: w = 3.2 cm
Hope this helps!
