Equation An equation is a mathematical formula containing an equals sign, to show that two expressions are equal. The word equation and its cognates in other languages may have subtly different meanings; for example, in French, in Estonian etc an equation is defined as containing one or more variables. In English, any well-formed formula consisting […]

# Tag: Estonian V

## Vertical angles, vertically opposite angles

Vertical angles, vertically opposite angles Vertical angles are the angles that lie opposite to each other when two lines intersect. Two vertical angles always share a common vertex. However, they never share a common side (arm). “Vertical” in this case means they share the same Vertex (corner point), not the usual meaning of up-down. Example: ∠AOD and ∠BOC […]

## Vertical

Vertical A vertical line is the one that we draw from top to bottom. On a table, the legs of the table are vertical lines. In the 2-dimension case, as mentioned already, the usual designation of the vertical coincides with the y-axis in coordinate geometry. https://en.wikipedia.org/wiki/File:Mystery_of_the_horizontal_y-axis.PNG […]

## Pentagon

Pentagon A pentagon is a type of polygon that has five sides and five angles. pentagon Different types of pentagones […]

## Formula

Formula A rule in math, like the formula for the area of a rectangle is length × width https://www.splashlearn.com/math-vocabulary/algebra/formula […]

## Equilateral triangle

Equilateral triangle An equilateral triangle is a triangle whose all three sides are of equal length. The sides of an equilateral triangle are congruent, which means that all sides are of equal length(AB=BC=CA). All the interior angles are equal too (α=β=γ=60 degrees). Here are some games with triangles: https://www.iknowit.com/lessons/e-classifying-triangles-equilateral-isosceles-scalene.html https://cardgames.io/triangles/ […]