Answer:
Therefore, the error is 52-50.27=1.73.
Explanation:
We know that Sid used geometry software to draw a circle of a radius 4 units on a fgrid. He estimated the area of the circle by ciunting the squares that were mostly inside the circle and got an answer of 52 sq units.
We use the formula:

Therefore, the error is 52-50.27=1.73.