Concave polygon A concave polygon has one or more angles larger than 180º. LicenseCC-BY-SA, GeoGebra Terms of Use […]

# Tag: English C

## Convex polygon

Convex polygon A convex polygon is a polygon, no angles larged than 180°. Examples: a convex polygon: a regular pentagon. convex pentagon convex hexagon LicenseCC-BY-SA, GeoGebra Terms of Use […]

## Coordinate plane

Coordinate plane A coordinate plane (Cartesian plane) is a plane formed by a horizontal line (an axis) and a vertical line (another axis) that intersect at a point called the origin. A plane containing two perpendicular axis (x and y) intersecting at a point called the origin (0,0).A point position is denoted using pairs of coordinates (x; y) , e.g. A(3, 1). The […]

## Cylinder

Cylinder A cylinder is a 3D solid shape that consists of two identical and parallel bases linked by a curved surface. These bases are like circular disks, two congruent circular or elliptical bases Surface area 2 · The area of the base + base circumference · height2πr2 + 2πrh Volume The area of the […]

## Cuboid

Cuboid A cuboid is a three dimensional solid that has 6 faces (rectangular), 8 vertices and 12 edges. A cuboid has three dimensions such as length, width and height. l – lenght w – width h – height Rectangular cuboid Surface Area of a Cuboid = 2· l·w […]

## Cubic metre

Cubic metre The cubic metre or cubic meter (in American English) is the unit of volume in the International System of Units (SI). It is the volume of a cube with edges one metre in length. One cubic metre is any volume equivalent to the volume formed by a cube measuring 1m by 1m by 1m. Cubic metre symbol is m3. m3 […]

## Cubic centimetre

Cubic centimetre A Cubic Centimetre (abbreviated cm3) is a cube that is 1 centimeter on each side. So it is one-thousandth of a liter, or one-millionth of a cubic meter. The cubic centimetre is a unit of volume in the International System of Units (SI). 1 cm x 1cm x 1cm […]

## Cube

Cube A Cube is a solid three-dimensional figure, which has 6 square faces, 8 vertices and 12 edges. It is also said to be a regular hexahedron. GeoGebra Materials Team LicenseCC-BY-SA, GeoGebra Terms of Use Real-World Examples […]

## Cross multiplication, cross products

Cross multiplication, cross products Cross multiplication, cross products means that you multiply the numerator in the first fraction times the denominator in the second fraction, then you write that number down. An equality with fractions on both sides can by cross multiplication.An equation with fractions on both sides may be simplified by cross-multiplying. Examples […]

## Counting Numbers

Counting Numbers Counting is understanding how many things there are in a group. A counting number is any number in the list { 1, 2, 3, 4, … }. Used for counting 1, 2, 3…. or ordering 1st, 2nd, 3rd… Counting numbers are more often called the natural numbers. The symbol N represents the set of natural numbers.N{ 1, […]