FInd the area of the circle in terms of pi.?

Question

It is a perfect circle. The center is labeled as point (5,0)
And if you drew this out then from the center you would draw a diagnol line to a place in the top right part of the circle. (on the Line)

How are you supposed to find the area in terms of Pi???????

Answer 1

You need the coordinates of that point on the circle. Find the distance between that point and the center using the distance formula. Suppose that point was (8,4). Then d² = (8-5)² + (4-0)² = 9 + 16 = 25. d² is of course r², so then your equation would be

(x - 5)² + (y - 0)² = 25.

Of course, since area is πr², in this example area would be 25π.

Answer 2

something tells me which you meant that the radius is 3/4 inches if so, the section A of the circle is given by using the formulation A = ? (3/4) in^2 = 9?/sixteen in^2 the place ? (examine as "pi") is the consistent of proportionality of a cirle's dimensions and its radius.

Answer 3

You need the coordinates of the other point. You can then use the pythagorean theorem to find r

r²=(y-0)²+(x-5)² where x & y are the coordinates of that point. then
A=((y-0)²+(x-5)²)*π

Answer 4

3.14 * diameter. diameter is the length of the line conecting the middle (top to bottom or left to right) of the circle

Answer 5

area = pi*r^2