Answer:
Option C. Elm tree has the greatest circumference.
Step-by-step explanation:
Dave is comparing the circumferences of several trees in his yard.
He has given the circumferences of the trees in different units, so first we convert all the same units.
Circumference of Oak tree = 0.539 meters
1 meter = 100 centimeters or 3.28 feet
0.539 meter = 53.9 cm or 1.768 feet
Circumference of ash tree = 0.509 yards
1 yard = 91.44 centimeter or 3 feet
0.509 yards = 46.54 cm or 1.527 feet
Circumference of elm tree = 6281.70 millimeters
1 millimeter = 0.1 centimeter or 0.00328084 foot
6281.70 mm = 628.17 cm or 20.609252 feet
Circumference of Poplar tree = 0.000385 miles.
1 mile = 160934 centimeters or 5280 feet
0.000385 miles = 61.9597 cm or 2.0328 feet
Elm tree has the greatest circumference 628.17 cm. or 20.61 feet.
