Given:
The perimeter of a rhombus of side d cm is
[tex]p=4d[/tex]
To find:
The perimeter of a rhombus of side 3.2 cm.
Find the length of a side of a rhombus of perimeter 14 cm.
Solution:
Side of a rhombus is 3.2 cm. So, its perimeter is
[tex]p=4(3.2)[/tex]
[tex]p=12.8[/tex]
Therefore, the perimeter of a rhombus of side 3.2 cm is 12.8 cm.
The perimeter of another rhombus is 14 cm, and we need find its side.
[tex]p=4d[/tex]
[tex]14=4d[/tex]
Divide both sides by 4.
[tex]\dfrac{14}{4}=d[/tex]
[tex]3.5=d[/tex]
Therefore, the length of a side of a rhombus of perimeter 14 cm is 3.5 cm.