Area of a circle = (pi) x (radius)2 = (pi) x (4)2 = 16 pi = 50.3 in2 (rounded)
Area of whole circle = pi*r2 = 64*pi Area of Sector = Area of Whole Circle * Angle of Sector/Angle of Whole Circle = Area of Whole Circle * 120/360 = Area of Whole Circle / 3 = 64*pi/3 = 67.0 to the nearest tenth.
If you have the radius, then area = pi*r2 which you then round to the nearest hundredth. If you do not know the radius but do know the diameter or circumference, you can calculate the radius. Otherwise you need to measure it.
656
Presumably you mean the area of a circle? Area of a circle = pi*radius2 Area = pi*3.82 = 45.36459792 Area = 45 square meters to the nearest square meter.
The radius of a circle when the area is 96 is 5.528
The area of a circle to the nearest tenth if its radius is 4.5 is: 63.6 square units.
Radius is the square root of (71/pi) = 4.8 feet rounded to the nearest tenth
10.1 inches
The circumference of a circle with radius of 7 km is 44.0 km (to the nearest tenth), and the area of a circle with radius of 7 km is 153.9 km (to the nearest tenth).C = 2 pi RA = pi R2
Using 3.14 as Pi the area of circle is: 12.56
The area of the circle would be 483.1 units squared.
3.0
Area of whole circle = pi*r2 = 64*pi Area of Sector = Area of Whole Circle * Angle of Sector/Angle of Whole Circle = Area of Whole Circle * 120/360 = Area of Whole Circle / 3 = 64*pi/3 = 67.0 to the nearest tenth.
If I remember correctly Area of a circle is... PIE multiplied by the RADIUS squared. If this is so.... 15 is the radius and... The sum of 15 x 15 should be multiplied by pie (3.1415 or what ever it is). Use a calculator to get to the nearest tenth.
r = sqrt(400/pi) = 11.3 cm
The area of a circle (to the nearest hundredth) with a 5-unit radius is: 78.54 square units.
6.5