The old civil engineering way, get your big book of math tables and look up the common log of 245, which is 2.389166 Divide that by two for a square root, which is 1.194583. Now we look up that number in the table to see what number has that common log. that number is 15.65 which is close enough for buildings and bridges
The old civil engineering way, get your big book of math tables and look up the common log of 245, which is 2.389166 Divide that by two for a square root, which is 1.194583. Now we look up that number in the table to see what number has that common log. that number is 15.65 which is close enough for buildings and bridges