Formula Index
# Perimeter of a isosceles trapezoid & Calculator

## Formula Knowing the Bases and one Side

### Where:

## Isosceles Trapezoid Definition

## Perimeter Definition

## Formula Definition

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.

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

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

$$B = "length of the bigger base"$$

$$b = "length of the smaller base"$$

$$c = "length of one of the sides"$$

$$2 = "number of lateral sides"$$

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.

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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