P = perimeter = 2L + 2W = 86 cm. Also, L = W + 4. Subst. W + 4 for L,
P = 2(W + 4) + 2W = 86 cm. Then 2W + 8 + 2W = 86 cm, and 4W = 78 cm.
Finally solving for W, W = (78 cm)/4, or 19.5 cm.
If W = 19.5 cm, then L = W + 4 cm = 19.5 cm + 4 cm = 23.5 cm
The rectangle's dimensions are 19.5 cm by 23.5 cm.
1 km=1093.61yards
6 km= 6*1093.61yards
6 km= 6561.66yards
Answer= 6561.66 yards
The metric unit of length that is equal to one thousandth of a meter is a millimeter. 1 meter = 1000 millimeter
hope this helps
