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what is the formula for a circle volume. This basic formula can be extended to cover the volume of cylinders and prisms too. Since the 4 3 and pi are constants this simplifies to approximately.
Volume of a regular tetrahedron. Perimeter of circle height. V 13p r 2 h What is the total surface area of hemisphere.
The area of a circle is found by the formula pi times the radius squared.
Where r is the radius of the sphere. Volume of a spherical sector. Cylinder whole surface Areas of top and bottom circles Area of the side. In the figure above drag the orange dot to change the radius of the sphere and note how the formula is used to calculate the volume.