What letters is used to indicate the circumference, the circumference of the rectangle is represente

c is for perimeter. It is also used to represent the length of the arc to represent the chord length. Representative area. Indicates the rest of the body. The integral of the length around the edge of a finite area is called the perimeter, which is the length of the shape around the circle.

The circumference is indicated by the letter C. If the length of the upper bottom of the trapezoid is a, the length of the lower bottom is b, the length of the two waists is e, d, and the circumference is c, then the perimeter formula of the trapezoid is c=a+b+c+d, which is popularly expressed as: upper bottom + lower bottom + waist + waist.

The perimeter is calculated as follows: circle: c d 2 r (d is the diameter, r is the radius, ) the perimeter of the triangle c a b c (abc is the three sides of the triangle).

Quadrilateral: C A B C D (ABCD is the side length of the quadrilateral). Special:

Rectangle: C 2 (A B) (A is long, B is wide) Square: C 4A (A is the side length of the square).

Polygon: c Sum of all edge lengths.

The circumference of the fan: c 2r n r 180 (n central angle) 2r kr (k radian). The circumference of the earth was first calculated in the history of the perimeter:

Eratosthenes of ancient Greece calculated the circumference of the earth more than 2,000 years ago with a simple measuring tool.

The length of the perimeter of the polygon is also equal to the sum of all sides of the figure, and scholars will use the letter c to represent the perimeter for the sake of writing convenience, global uniformity, and legibility in the calculation.

Perimeter C perimeter, pinyin: zhōu cháng, English: circumference, represented by the letter C. The perimeter length of a circle, ellipse, or other closed curve.

Formula circle: c = d = 2 r (d is the diameter, r is the radius, ) perimeter perimeter.

Rectangle: c=2(a+b) (a is long, b is wide) square: c=4a (a is the side length).

The perimeter of the triangle c = a + b + c (abc is the three sides of the triangle) the perimeter of the fan: c = 2r + n r 180 (n = central angle).

The circumference of a rectangle is represented by the letter C, and a rectangle, also known as an oppositional rectangle, is a flat figure, which is a parallelogram with a right angle at the angle.

A rectangle is also defined as a parallelogram with all four corners at right angles. A square is a special rectangle with four sides of equal length.

The nature of the rectangle is two diagonals.

Talking about cavity annihilation, etc., the two diagonals are bisected with each other, the two groups of opposite sides are divided into circles and parallel to each other, the two groups of opposite sides are equal, the four corners are all right angles, and there are two axes of symmetry.

It is unstable, the square of the diagonal length of the rectangle is the sum of the squares of the two sides, and the quadrilateral obtained by connecting the midpoints of each side of the rectangle in order is a diamond.

It is indicated by the capital letter l.

Due to the convenience of writing, as well as the global uniformity and legibility of calculations, scholars have found specific substitutes for various mathematical and physical quantities.

The area is represented by a letter as "s".

The perimeter is represented by a letter as "L".

The volume is represented by a letter as a "v".