The perimeter of a trapezoid can be calculated using one of the following formula: if you know the length of each side.
If you know the length of one of the sides, you can calculate its perimeter using the following formula:
$$"perimeter" = a + b + c + d$$
$$a = "length of the "a" side"$$
$$b = "length of the "b" side"$$
$$c = "length of the "c" side"$$
$$d = "length of the "d" side"$$
It is a geometric figure with 4 sides, it has two parallel lines. All trapezoids have different angles.
A trapezoid can have vitually infinite posibles shapes, Despite this all have 4 sides and all this angles are different.
A perimeter is defined by the outer path of a shape. The shape is always in 2 dimensions. The perimeter is the total length of the exterior path. Another way of looking at this is to think of it as the boundary length of a shape.
In the case of a circle, the perimeter is called a circumference.
Perimeter has a Greek origin, "peri" means "around", and "meter" means "measure". So perimeter means "measure around".
It is a representation of a rule or a general principle using letters. (Algebra, A. Baldor)
When describing formulas in plural, it is also valid to say "formulae".
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