What object is 10 cm long?

What is the formula for the perimeter and area of a parallelogram? How do you write two million and ninety five thousand? What is the date and time halfway through a year? How many years in a 4 score and 10? What numbers goe into12? How many tens are in 10.000? Sixteen minus a mystery number equals half the sum of 16 and 2 What is the mystery number? Which numbers between 30 and 50 are exacty divisible by 7? How do you write 2894 in expanded form? What were the early achievements for women.mention any 4 points? How do you do standard algorithm by two by two? How many kL makes milliliter? How do you convert 3.57 mm to micrometers? When did the current decade begin? What is IXL in Roman Numerals? How do you write 5 billion 6 million twelve? How do you figure the size of a 500 gallon tank? What digit is in the tenths column of 12.5? What is 2 and 3 over 4 as a fraction? What is the written notation for KCN?