Question

The density of the American white oak tree is 752 kilograms per cubic meter. If the trunk of an American white oak tree has a circumference of 4.5 meters and the height of the trunk is 8 meters, what is the approximate number of kilograms of the trunk.

Answer 1

Here I hope this helps you out

Answer 2

ANSWER:

We know that,

C = πd

• 4.5/π = d
• 2.25/π = r ...(1)

Now, Volume of cylindrical tree = π(2.25/π)²8

• π × 5.0625/π² × 8
• 5.0625/3.14 × 8
• 12.89m³

And Density = Mass/Volume.

Mass = Density × Volume

Mass = 752 × 12.89

So, Mass = 9,693.28kg.

Hence, the approximate number of kilograms of the trunk is 9693.28kg.