Formula Index

# Perimeter of a isosceles trapezoid & Calculator

The perimeter of a isosceles trapezoid can be calculated using one of the following formula: if you know the length of the bigger base, the smaller base and one of the sides, could be left or right side.

## Formula Knowing the Bases and one Side

If you know the length of one of the sides and the bases sides, you can calculate its perimeter using the following formula:

$$"perimeter" = B + b + 2c$$

Perimeter of a Isosceles Trapezoid

Perimeter result

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### Where:

$$B = "length of the bigger base"$$
$$b = "length of the smaller base"$$
$$c = "length of one of the sides"$$
$$2 = "number of lateral sides"$$

## Isosceles Trapezoid Definition

It is a geometric figure with 4 sides and 4 vertices, the isosceles trapezoid has 2 parallel sides and will always have diferent lengths betwen them; the other two sides are equal length.

The isosceles trapezoid in its bigger base has equal angles, and in its smaller base has also equal angles.

## Perimeter Definition

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".

## Formula Definition

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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