Area of the circle: pi*11^2 = 121*pi square units
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the radius is half the diameter. radius is half of 11. Which is 5.5.
Oh, dude, the radius of a circle is just half of the diameter, so for an 11-inch circle, the radius would be 5.5 inches. Like, it's just basic math, nothing to lose sleep over. So yeah, the radius is 5.5 inches, but who's really measuring, right?
Diameter = 2 * radius = 11 cm
area of a circle is pi times radius squared. the radius is 11 feet. the area ofthe circle would be 380ft2 since it is a half circle you take half of 380... your answer is 190ft2
radisus: 11; diameter:22 (2X11)