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A sphere with a diameter of 16 meters has the same surface area as the total surface area of a right cylinder with the base diameter equal to the sphere diameter how high is the cylinder?
Surface Area of Sphere = 4*Pi*r2 Surface Area of Cylinder = 2*Pi*r2+2*Pi*r*h If we set them as equal: 4*Pi*r2 = 2*Pi*r2+2*Pi*r*h ' Factor out 2*Pi*r 4*Pi*r2 = 2*Pi*r*(r+h) ' Divide both sides by 2*Pi*r 2*r=r+h ' Subtract r from both sides r=h Diameter = 2*r so h=d/2 In this case, d=16m h=8m
How do you find the circumference of a circle with just the radius?
The circumference of a circle is equal to the radius times 2*pi. 2*pi*R where R is the radius.
Q149 The perimeter of a circle and square are equal The ratio of their area is?
Equal perimeters:2 pi R = 4 spi R = 2 ss = pi R / 2Ratio of areas:pi R2 / s2 = (4 pi R2) / (pi2 R2) = 4 / pi= 1.2732 (rounded)The area of the circle is [ (4/pi) x (area of the square) ].
What is the area of a circle which has a radius equal to 3?
Using 3.14 as Pi the area of circle is: 28.259999999999998
How can circumference equal area?
A=pir2 a=3.14(2)2 a=3.14(4) a=pi*d area =pi r 2 circumference=pi times d in this equation in terms of pi, a=csquared
