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)
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
There are 90 degrees