A=pi x (radius)2
Ans=pi x (radius)2 x 1/4
9pi (about 28 and one quarter) square feet.
Dr.Pepper
in a circle
Find the area of both circles (A = πr2) and subtract the area of the larger circle from that of the smaller circle inside it.
one fourth of circle
A full circle is 360o, so a quarter, (one fourth) of a circle is 90o.
Fine the area of the jar then find the area of a quarter then divide the area of the jar by the area of the quarter and you get your answer.
It is: 1/4*pi*144 = 36*pi square units
The arc is one quarter of a circle so is 2pir, the other components of the quarter circle are the two radii, so perimeter is 2r+2pir = 2r(1+pi)
The center of area of a quadrant, which is one-fourth of a circle, lies at the coordinates (r/2, r/2), where r is the radius of the circle. This point is derived by averaging the coordinates of the quarter-circle area. The center of area is not at the geometric center but rather at this specific location due to the shape's curvature and the distribution of area.
Half circle plus quarter circle is equal to three-fourths of a circle. Three-fourths of a circle plus one eighth of a circle is seven-eighths. You still need one more eighth to complete the circle.
1/4 of a circle is a 90 degree turn