Area of the circle: pi*11^2 = 121*pi square units
Area of the circle: pi*11^2 = 121*pi square units
Entire surface area: (2*pi*121)+(22*pi*23) = = 748*pi square inches
There are two ends, each of area {pi}r2 and the side which can be worked out by cutting the cylinder down (from end to end) and unrolling; one length is the cylinder height (h), the other is the circumference of the end (2{pi}r), giving 2{pi}rh. Area = 2x({pi}r2) + 2{pi}rh Area ~= 2x3.14x112 + 2x3.14x11x11 Area ~= 1520.5in2
The radius a circle with area of π*121 yd2 is 11 yds [= sqrt(121)] The circumference, therefore, is 2*11*π = 22*π yards.
Area of the circle: pi*11^2 = 121*pi square units
Area of the circle: pi*11^2 = 121*pi square units
Using 3.14 as Pi the area of circle is: 0
Diameter = 11 inches so area = pi*d2/4 = 95.03 sq inches.Diameter = 11 inches so area = pi*d2/4 = 95.03 sq inches.Diameter = 11 inches so area = pi*d2/4 = 95.03 sq inches.Diameter = 11 inches so area = pi*d2/4 = 95.03 sq inches.
measure of central angle/360 degrees = area of sector/area of circle 110 degrees/360 degrees = 40 unit2/ pi r2 unit2 11/36 = 40/pi r2 11 pi r2 = 40 x 36 11 pi r2 = 1,440 r2 = 1,440/11 pi r = square root of 1,440/11 pi r = 20.3 unit approximately
Entire surface area: (2*pi*121)+(22*pi*23) = = 748*pi square inches
Using 3.14 as Pi the area of circle is: 379.94
Total surface area = (2*pi*112)+(pi*22*11) = 1520.531 square inches rounded to 3 decimal places
Area = pi*radius squared 11 in = pi*r^2 divide both sides by pi 3.50 in = r^2 take square root of each side 1.9 inches = radius
Radius, r = diameter / 2 Then circumference = 2*pi*r and area = pi*r*r
Surface area of a sphere = 4*pi*radius2 Surface area = 4*pi*112 = 1520.530844 square units.
The general eq'n for a circles area is A = pi r^(2) Hence With a diamter of 22 inches . the radius(r) is half the diameter at 11 inches. Substituting A = pi 11^(2) A = 121 pi Using pi = 3.14 Hence A = 121 X 3.14 A = 379.94 sq.ins. (NOT ins^(2))