Answer:
Area of Circle A = 1133.54
Circumference of Circle A= 119.32
Step-by-step explanation:
Given: Sum of both circle diameters= 49 feet.
Circle A radius= Three feet less than twice the diameter of circle B.
Lets assume diameter of Circle B is "x"
∴ Circle A radius (r)= 
We know, the diameter of circle is 
Diameter of Circle A is 
Next as given sum of both circle diameter is 49 feet.
∴ 
distributing 2 with 2x and -3
⇒ 
⇒
Adding both side by 6
⇒
Cross multiplying both side.
⇒
∴ Diameter of circle B is 11 feet.
Next, subtituting the value of x to get the value of radius for Circle A.
Radius of circle A= 
⇒ Radius of circle A= 
∴ Radius of circle A= 19 feet.
Area of circle= 
Taking π= 3.14
Area of circle A= 
∴ Area of circle A= 1133.54
Circumference of circle= 2πr
Circumference of Circle A= 
∴ Circumference of Circle A= 119.32
Multiply secondsn by 60 add to minutes multiply by 60 and to degrees
Intersection of the first two lines:

Multiply the first equation by 4 and the second by 5:

Subtract the two equations:

Plug this value for y in one of the equation, for example the first:

So, the first point of intersection is 
We can find the intersection of the other two lines in the same way: we start with

Use the fact that x and y are the same to rewrite the second equation as

And since x and y are the same, the second point is 
So, we're looking for a line passing through
and
. We may use the formula to find the equation of a line knowing two of its points, but in this case it is very clear that both points have the same coordinates, so the line must be 
In the attached figure, line
is light green, line
is dark green, and their intersection is point A.
Simiarly, line
is red, line
is orange, and their intersection is B.
As you can see, the line connecting A and B is the red line itself.