Answer:
A row of 56 half-dollars be 1736 mm long
Step-by-step explanation:
A half-Dollar has a diameter of about 31 millimeters.
Diameter of half dollar = 31 mm
About how many millimeters long would a row of 56 half-dollars.
So we are arranging 56 half dollars in 1 row
Total length = Number half dollars x Diameter of half dollar
Total length = 56 x 31 = 1736 mm
A row of 56 half-dollars be 1736 mm long
