the length of the blackboard of your class classroom is 5.5 cubit . what is its length in SI unit if 1 cubit= 45.72?
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Answer: 18
Explanation:
The cubit, generally taken as equal to 18 inches (457 mm), was based on the length of the arm from the elbow to the tip of the middle finger and was considered the equivalent of 6 palms or 2 spans. In some ancient cultures it was as long as 21 inches (531 mm).
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