Question

The area of a circle is approximately 3.14 time the radius squared. Which of the following expressions is a correct way to write this, if the radius is x?
Answer

a) x(3.14)^2

b) 3.14x^2

c) (3.14x)^2

d) 2(3.14)x

Answer 1

b. Pi r^2

Answer 2

b