Best Answer: There is no specific number. You can have a paragraph composed of just a single sentence. Remember-a paragraph is a series of connected sentences expressing a thought. If the thought can be expressed in one sentence, then Bob's your uncle.
Well, remember that 1 meter equals to 1,000 millimeters. Having that in mind, then 368 millimeters equals to 0.368 meters. Millimeters = 10 ^ -3 meters. Just move the point at the right side of the number 8 (millimeters) and move it three times to the left.
1 meter = 1000 millimeters. Therefore, there are 300 millimeters in a ruler (0.30*1000).