Answer:
74 cm would a ribbon need to be to go all the way around the edge of the top of the box .
Step-by-step explanation:
Formula
Perimeter of a rectangle = 2 (Length + Breadth)
As given
The rectangular top of a small box has dimensions of 140 mm by 230 mm.
Perimeter of the rectangle box top = 2 × (140 + 230)
= 2 × 370
= 740 mm
As
1 mm = 0.1 cm
Now change into 740 mm into cm.
740 mm = 0.1 × 740
= 74 cm
Perimeter of the rectangle box top = 74 cm
Therefore 74 cm would a ribbon need to be to go all the way around the edge of the top of the box .
