Answer: c. elm
Step-by-step explanation:
Given : The circumference of the oak tree= 0.539 meters
=[tex]0.539\times100=53.9\text{ cm}[/tex] [∵ 1 m = 100 cm] (1)
The circumference of the ash tree= 0.509 yards
[tex]=0.509\times3\text{ feet}[/tex] [∵ 1 yard = 3 feet]
[tex]=0.509\times3\times 30.48\text{ cm}[/tex] [∵ 1 foot = 30.48 cm]
[tex]=46.54296\approx46.54\text{ cm}[/tex] (2)
The circumference of the elm tree = 6281.70 millimeters
[tex]=\dfrac{6281.70}{10}=628.17\text{ cm}[/tex] (3)
The circumference of the poplar tree = 0.000385 miles
[tex]=0.000385 \times5280\text{ feet}[/tex] [∵ 1 mile = 5280 feet]
[tex]=0.000385 \times5280\times30.48\text{ feet}[/tex] [∵ 1 foot = 30.48 cm]
[tex]=61.959744\approx61.96\ \text{ cm}[/tex] (4)
From (1) , (2) , (3 ) and (4) it is clear that
46.54< 53.9 < 61.96 < 628.17
Hence, the elm tree has the greatest circumference.
