Question

The area of circular garden is 615.44 feet2. What is the circumference of the garden? (Use 3.14 for .)
A.
205.15 feet
B.
87.92 feet
C.
43.96 feet
D.
307.72 feet

Answer 1

Answer:

87.92 ft

Step-by-step explanation:

Area of a circle = pi*r^2.                                    A

If the area is given, then the radius is r = √  -------

                                                                           pi

circumference of a circle = 2*pi*r.  We use the expression for r found above:

                                                          615.44

Circumference of garden = 2*pi* √------------

                                                              pi

Substituting 3.14 for pi, we get:  

                                                           615.44

Circumference of garden = 6.28* √------------ = 6.28*14 = 87.92 ft

                                                              3.14