Question

find the area and circumference of each circle
1)
16.1 ft
radius =
diameter =
area =
circumference =

Explanation:

Step1: Identify radius

The radius $r$ of the circle is given as $r = 16.1$ ft.

Step2: Calculate the diameter

The diameter $d$ of a circle is related to the radius by the formula $d = 2r$. So, $d=2\times16.1 = 32.2$ ft.

Step3: Calculate the area

The area $A$ of a circle is given by the formula $A=\pi r^{2}$. Substituting $r = 16.1$ ft, we get $A=\pi\times(16.1)^{2}=\pi\times259.21\approx 3.14\times259.21 = 814.9194$ square - feet.

Step4: Calculate the circumference

The circumference $C$ of a circle is given by the formula $C = 2\pi r$. Substituting $r = 16.1$ ft, we get $C=2\times\pi\times16.1=32.2\pi\approx32.2\times3.14 = 101.108$ ft.

Answer:

Radius = 16.1 ft
Diameter = 32.2 ft
Area $\approx814.92$ square - feet
Circumference $\approx101.11$ ft