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Q: How do you find the surface area and volume for a octahedron?

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Surface Area: 2πr2 + 2πrh Volume: πr2h

to obtain the ratio of surface area to volume, divide the surface area by the volume.

The volume of a cube = a3 The surface area = 6a2 (a=one side of the square in a cube)

It has no volume because it's a 2D shape but its surface area is:- length*perpendicular height

By dividing its cross-section area into its volume

Related questions

The surface-area-to-volume ratio may be calculated as follows: -- Find the surface area of the shape. -- Find the volume of the shape. -- Divide the surface area by the volume. The quotient is the surface-area-to-volume ratio.

Surface Area: 2πr2 + 2πrh Volume: πr2h

to obtain the ratio of surface area to volume, divide the surface area by the volume.

The volume of a cube = a3 The surface area = 6a2 (a=one side of the square in a cube)

It has no volume because it's a 2D shape but its surface area is:- length*perpendicular height

Write a c program to compute the surface area and volume of a cube

The Surface area of a triangle = 0.5*base*height The volume of a prism = area of its cross-section*length

1) Calculate the area 2) Calculate the volume 3) Divide the area by the volume to get the ratio

To tackle this you first need to know the equations for both volume and surface area. The surface area of a cube is 6x2 where x is the side length. The volume of the cube is x3. Thus x is the cube root of the volume. We can substitute this in to the surface area equation and say that the surface area of a cube is 6volume2/3 This can also be rearranged to say that the volume of the cube is (the surface area/6)1.5

volume

By dividing its cross-section area into its volume

There are different formulae for different shapes.

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