How many centimeteres is a standard ruler?

What is 8.196 rounded to the nearest hundredths? How do you write 149500000 in exponential form? Trisecting a line segment by using only a straightedge and compass was proven impossible by advanced algebra? If the measure of a tangent angle is 36 then what is the measure of the intercepted arc inside the angle? How many sides has a convex polygon if the sum of the measures its angles is 2160? What was the 10 percent plan? Two runners finished a race in 80 seconds another runner finished the race in 72 seconds and the final runner finished in 68 seconds The average of these times is? What is chainage in linear surveying terms? What is the square root of 26244? What does comptoir mean? What chemical elements make oil? How Matthew Mark Luke and John are related to bible? What are all the odd composite numbers? Is 3 equals 3 inches? What happens if your 9? What is diffirent between the endoplasam and ectoplasm? What are some examples of Cockney slang? What is 993 as a decimal? How many times does 2.5 inches go into 5.0 feet? Is 234567 a prime nnumber or divisible by2 or divisble by3 or none of these and why?