Answer:

Step-by-step explanation:
To find the cost of the entire fence, we need to first determine the lawn's length before calculating its perimeter.
Area of rectangular lawn =
(formula for the area of a rectangle)

feet
Now that we have the lawn's length and width, we can calculate the perimeter:
Perimeter
(formula for the perimeter of a rectangle)

feet
Since each foot of lawn costs $2, then the cost of the entire fence will be:

∴ The entire fence costs
.
Hope this helps :)
By definition the perimeter of an ellipse is given by:

Where,
a: semimajor axis of the ellipse
b: minor semiaxis of the ellipse
Substituting values we have:

When doing the corresponding calculations, we have that the perimeter is given by:

Round to the nearest tenth:
Answer:
the estimated perimeter of the ellipse is:
Answer:
113.098
Step-by-step explanation:
Area of a semicircle is πr^2 / 2
so π*144 / 2
which is 226.195
area of smaller circle is:
π*36 (r=6)
that is 113.097
226.195-113.097 is
113.098
Answer: 0.54
Step-by-step explanation: