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# Who discovered surface area?

Archimedes

## How is surface area and volume found?

A: Surface area to volume ratio can be found easily for several simple shapes, like for example a cube or a sphere. For a cube, the equation for surface area is S=6*L*L, where L is the length of a side. Similarly, the volume of a cube is V =L*L*L.

## How do you solve surface area and volume problems easily?

Tricks to solve Volume and Surface Area Problems

1. CUBOID. Let length = l, breadth = b and height = h units. Then.
2. CUBE. Let each edge of a cube be of length a. Then,
3. CYLINDER. Let radius of base = r and Height (or length) = h. Then,
4. CONE. Let radius of base = r and Height = h. Then,
5. SPHERE. Let the radius of the sphere be r.
6. HEMISPHERE. Let the radius of a hemisphere be r.

## What is surface area and volume?

Surface area and volume are calculated for any three-dimensional geometrical shape. The surface area of any given object is the area or region occupied by the surface of the object. Whereas volume is the amount of space available in an object. Each shape has its surface area as well as volume.

## What is the formula of slant height?

The slant height can be calculated using the formula a^2 + b^2 = c^2. In the formula, a is the altitude, b is the distance from the center of the base to the point where the slant height segment starts, and c stands for the slant height.

## What is surface area of cube?

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube. We have 96 = 6a2 → a2 = 16, so that’s the area of one face of the cube.

## What is the volume and surface area of a cube?

So for a cube, the formulas for volume and surface area are V=s3 V = s 3 and S=6s2 S = 6 s 2 .

## What is the formula of CSA of cube?

Cube and Cuboid Formulas

Cube Cuboid
Total Surface Area = 6(side)2 Total Surface area = 2 (Length x Breadth + breadth x height + Length x height)
Lateral Surface Area = 4 (Side)2 Lateral Surface area = 2 height(length + breadth)
Volume of cube = (Side)3 Volume of the cuboid = (length × breadth × height)

## What is a formula of cylinder?

The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h . Therefore, the volume of the cylinder is about 3016 cubic centimeters.

## What is the CSA of cylinder?

The curved surface area of a cylinder is defined as the area of its curved surface or the area obtained after excluding the area of its two circular bases. The CSA of cylinder having its base radius ‘r’ and height ‘h’ is given by: Curved surface area (CSA) of cylinder = 2πrh sq. units.

## What is pi r2 4?

The area of a circle is: π (Pi) times the Radius squared:A = π r2. or, when you know the Diameter:A = (π/4) × D2. or, when you know the Circumference:A = C2 / 4π

6

## How many diagonals are in a cuboid?

four. There are four space diagonals, i.e. diagonals not contained in any face, illustrated in the diagram, below. In addition, in case this is a trick question, each face has two diagonals, for a total of 12 face diagonals (not shown). The faces of a big cube are painted

## Is a cube a cuboid?

The key difference between cube and cuboid is: a cube has six square-shaped faces of the same size but a cuboid has rectangular faces.

## Can a cuboid have 2 square faces?

A cuboid is a solid that has six rectangular faces–think of a typical box. All faces are either parallel or perpendicular to each other. A cuboid with six square faces is a cube, whereas a cuboid with at least two square faces is known as a square cuboid.

## What is called cuboid?

In geometry, a cuboid is a convex polyhedron bounded by six quadrilateral faces, whose polyhedral graph is the same as that of a cube.

## How many dimensions are required to make a cuboid?

The attributes of the cuboid are faces, edges, and vertices. The three dimensions compose the edges of a 3D geometric shape.

## What is height of a cuboid?

The dimensions of a cuboid will generally be denoted by l for length, b for breadth and h for height. Suppose that a cuboid has the dimensions 5 cm, 4 cm and 2 cm. We will say that it is a 5 cm × 4 cm × 2 cm cuboid.

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