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volume of a cylinder is V = PI*R2*H So V = PI*(4.2)2*(8) V approx. = 443.34 cubic units

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Q: What is the volume of a cylinder with a radius of 4.2 and a height of 8?
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What is the volume of a cylinder with a radius of 4 cm and a height of 10 cm?

First of all, we must know the volume of a cylinder, which is: the area of the cross-section(the circle) times the height of the cylinder.This means the formula is: pi x radius2 x h.We know that the radius is 4 and the height is 10, so we substitute these into our formula for the volume.So... Volume =pi x 42 x 10.We put this in the calculator, which gives us 502.65This means that the volume of this cylinder is 502.65 cm squared.


What is the surface area of a cylinder with end that are half sphere with a radius of 4 and height of 12?

If the radius of the hemispheres is 4, then that leave 4 units for the length if the straight part of the cylinder. Total surface area = surface area of 1/2 sphere of radius 4 + lateral surface area of cylinder of radius 4 and height 4 + surface area of 1/2 sphere of radius 4. = surface area of sphere of radius 4 + lateral surface area of cylinder of radius 4 = 4*3*pi*43 + pi*42*4 = 469.1 cubic units.


What is the approximate volume of the cone with a base of 8cm height 12cm using 3.14 as pi?

Volume: 1/3*3.14*42*12 = 200.96 or about 201 cubic cm Note it is assumed that the base diameter is 8 cm.


What is the area of a triangle with a base of 14 cm and a height of 6 cm?

The equation is base times height all divided by two. So... 14 times 6 is 84 and 84 divided by 2 is 42, so... 42 is your answer.


The diameter of a big circle is 42 feet what is the ratio of the circle's radius to it's diameter?

Radius = 1/2 of diameter.The ratio is 1/2 = 0.5.That's true for all circles, from microscopic to humongous, doesn't matter.

Related questions

What is the height of a cylinder with 1000 cubic millimeters in volume and radius of 4 millimeters?

Height = 1000/(pi*42) = 19.89436769 mm


What is the volume of a cylinder with a radius of 4 cm and height of 32 cm?

Volume = pi*42*32 = 512pi cubic cm.


What is the volume of a cylinder with the radius of 4 cm and height of 32 cm?

Volume: pi*42*32 = 512*pi cubic cm


What is the height of a cylinder with the radius of 4in and volume is 1105.08?

Height = 1105.08/(pi*42) = 21.98486806 or about 22 inches Check: pi*42*21.98486806 = 1105.08 cubic inches


Formula for the volume of a cylinder?

V=area of a base times the height ie: 3.14(42)(15)=753.6 Volume=pi x radius sqaured x height


What is the volume of a cylinder with a height 0f 9 inches and a radius of 4 inches?

= piR2 x Height = 3.142 x (42) x 9 = 452.448 inches3


What is the volume of a cylinder with a radius of 4 cm and a height of 10 cm?

First of all, we must know the volume of a cylinder, which is: the area of the cross-section(the circle) times the height of the cylinder.This means the formula is: pi x radius2 x h.We know that the radius is 4 and the height is 10, so we substitute these into our formula for the volume.So... Volume =pi x 42 x 10.We put this in the calculator, which gives us 502.65This means that the volume of this cylinder is 502.65 cm squared.


What is the altitude of a cylinder whose volume is 500 cubic inches and it's base has a radius of 4 inches?

pi*radius2*height = volume Divide both sides of the equation by pi*radius2 to find the height or altitude: height or altitude = 500/pi*42 = 9.947183943 inches


What is the volume of a cone with the radius of 4 and height of 15?

Volume = 1/3*pi*42*15 = 251.327 cubic units


What is the volume of a cylinder 19 inches high and a radius of 4 inches?

Volume = pi*42*19 = 304*pi cubic inches


What is the volume of a cylinder with a height of 18 and a raidius of 4?

V = 3.14 x 42 x 18 = 904.32


Find the volume of a cone with a radius of 4 millimeters and a height of 9 millimeters?

Volume = 1/3*pi*42*9 = 150.7964474 cubic millimeters