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

B.)

87.92 feet

Explanation:

Given:

Area of the circular garden
`= 615.44 ft^2`

`\pi =3.14`

Finding the radius of the circle.

Area of the circle=
`\pi r^2`

`615.44=\pi *r^2`

`r^2=(615.44)/(\pi ) \\\\r^2=(615.44)/(3.14) \\r^2=196\\r=14 ft.`

Circumference of the garden:

`=2\pi r\\=2*3.14*14\\=87.92ft.`