Joseph C. answered • 04/05/16

Joseph, Trilingual instructor, Paso Robles, CA

A search using BING revealed that individual rice grains are usually about 7 millimeters in length and about 1.4 millimeters in diameter.

We can think of each grain as a small cylinder with the above dimensions, which means the volume will equal pi • r

^{2}• hIn this case, V = (0.7mm)

^{2}• 7mm • 3.1415 = 10.78mm^{3}One trillion = 1 x 10

^{12}, so the total volume of the rice will be 10.78 x 10^{12}mm^{3}We then have to convert that number to cubic meters.

One cubic meter = 1 x 10

^{9}mm^{3}so, we divide our grain volume by the conversion factor to get

10.78 x 10

^{3}m^{3}You will then need to use that volume to find the dimensions of an object.