Final answer:
To find the area of the baking sheet left uncovered, we would first determine the area of one biscuit using the formula A = πr². We would multiply this by six for all biscuits and subtract from the total area of the baking sheet. However, the lack of information regarding the diameter or radius of the biscuits prevents us from completing this calculation.
Step-by-step explanation:
The question asks about calculating the area of a baking sheet left uncovered by six circular biscuits placed on it, using an approximation of π (Pi) as 3.144π. Assuming the diameter and the radius of the biscuits are given, the area of one biscuit can be found using the formula A = πr². First, we would calculate the area for one circular biscuit and then multiply it by six to find the total area covered by biscuits. From the total area of the baking sheet, this area would be subtracted to find the uncovered area.
However, there is not enough information provided to solve the problem since the diameter of the biscuits is not provided in the question. We would need either the exact diameter or radius of the biscuits to proceed. If such information were available, we could then approximate the uncovered area of the baking sheet.