Question

Work out the area of this circle take n to be 3.142 and give your an 1 decimal place when the diameter 4cm

Answer 1

draw a circle with diameter 4cm and the area should be 3.142

Answer 2

50.24 or 50.272

Explanation:

Square radius and then times by 3.14 or 3.142

4^2*3.14 = 50.24

4^2*3.142 = 50.272