Answer:
length of rectangular box = 2[w] + 5
length of rectangular box = 35 cm
Step-by-step explanation:
Given:
length (l)
width (w)
Perimeter = 100 centimetre
Computation:
Part A;
length of rectangular box = 2[width] + 5
length of rectangular box = 2[w] + 5
Part B;
Perimeter = 2[l+w]
100 = 2[2w + 5 + w]
100 = 6w + 10
w = 15 cm
length of rectangular box = 2[w] + 5
length of rectangular box = 2[15] + 5
length of rectangular box = 35 cm
