## Mathematical Way Blog

Find the formulas you need for your studies. Mathematics, Statistics, Physics.

Mathematics at your fingertips. Discover a simple and complete way to learn.

## Mathematical Way Finder: "As for everything else, so for mathematical theory: beauty can be perceived but not explained." - ARTHUR CAYLEY

## Isosceles Triangle

Select your language EnglishSpanish The isosceles triangle is a polygon of three sides with two equal sides. The other side unequal is called the base of the triangle. Therefore, the angles will also be...

## Altitude of a Triangle

Select your language EnglishSpanish The altitude of a triangle, or height, is a line from a vertex to the opposite side, that is perpendicular to that side. It can also be understood as the...

## Points, Lines, and Circles Associated with a Triangle

Select your language EnglishSpanish Every triangle has lines (also called cevians) and points that determine a number of important elements. There are many different constructions that find a special point associated with a triangle,...

## Cosecant

Select your language EnglishSpanish The cosecant is the reciprocal trigonometric ratio of the sine. It is the reciprocal or multiplicative inverse of the sine, that is, csc θ · sin θ = 1. In a right triangle, the cosecant of...

## Perimeter of an Isosceles Triangle

Select your language EnglishSpanish The perimeter of an isosceles triangle is obtained as the addition of the three sides of the triangle. Having two equal sides, the perimeter is twice the repeated side (a)...

## Triangle Center

Select your language EnglishSpanish Some classical triangle centers are: Centroid (G) Orthocenter (H) Circumcenter (O) Incenter (I) Centroid of a Triangle The centroid of a triangle (or barycenter of a triangle) G is the...

## Arctangent

Select your language EnglishSpanish The arctangent (notation: arctan or tan-1) is the inverse function of the tangent. That is: As the arctangent and tangent are inverse functions, their composition is the identity. Thus: Properties...

## Perimeter of a Right Triangle

Select your language EnglishSpanish The perimeter of a right triangle is the sum of the lengths of the two legs and the hypotenuse (in other words, the sum of all three sides). Download this...

## Cosine

Select your language EnglishSpanish In a right triangle, the cosine of an angle θ is defined as the ratio of the adjacent leg (b) to the hypotenuse (c). It is one of the trigonometric...

## Area of a scalene triangle

Select your language EnglishSpanish The area of a scalene triangle can be calculated using Heron’s formula if all its sides (a, b and c) are known. It could also be calculated if a side...