A circle has an area of 3.14 cm^2 . What is its radius?

1cm
2cm
1/2cm
cant be detemined

The radius of the circle is 1 cm, if the circle has an area of 3.14 .

Step-by-step explanation:

         The given is,

                  Area of the circle is 3.14 ,

Step:1

        The formula for Area of circle,

                    A = π....................(1)

       where,

                   π - 3.14

                    r -  Radius of circle

Step:2

         From the given,

               Area, A = 3.14

        Eqn (1) becomes,

                  3.14 = 3.14 ×                (∵ π = 3.14 )

                      =

                      = 1

                    r =

                      = 1

                    r = 1 cm

           Radius of circle, r = 1 cm

Result:

      Thus the radius of the circle is 1 cm, if the area of circle is 3.14 .

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

its d. the first coordintaes are 10,32

step-by-step explanation: