SAT Prep - Math

Congruent triangles are triangles that have identical size and shape meaning their the length of their corresponding sides and angles is identical.             You need to remember two important things ab... read more ››

Properties of Equilateral Triangle In geometry, an equilateral triangle is a triangle in which all three sides are equal. Equilateral triangles are also equiangular; that is, all three internal angles are equal to each other and are each 60°. Equ... read more ››

A triangle with two equal sides is called an isosceles triangle. Questions involving isosceles triangles are very common in SAT. To answer these questions, you should be familiar with the following properties of isosceles triangles.    Si... read more ››

Pythagorean theorem establishes the relationship between the 3 sides of a right triangle. As per this theorem, in any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the a... read more ››

To understand the concept of similarity of triangles, one must think of two different concepts: shape and scale. In particular, similar triangles are triangles that have the same shape and are up to scale of one another. In other words one of th... read more ››

Right triangles are a special class of triangles with one of the angles as 90 degrees. Within this special class, we want you to know about 2 special type of triangles: The 30-60-90 Triangle The 45-45-90 Triangle These triangles have sides ... read more ››

The area of a triangle is the space enclosed within the three sides. Think of the area as the number of square tiles of length 1 unit, that can fit inside the triangle. Like area of any other shape, the area of a triangle is also expressed as square ... read more ››

Triangle is the shape that is formed by joining three points. The three points or corners of a triangle are called vertices. In the following figure,  the vertices of the triangle are marked as A, B and C. Such a triangle is denoted as . In this... read more ››

Triangle inequality is an important triangle property. Number of questions have been asked in previous SATs that tests this important concept.   The sum of the lengths of any two sides of a triangle is always greater than the length of its thir... read more ››

Perimeter of a triangle is an easy concept to master. The perimeter of a triangle is a sum of the length of all 3 sides of a triangle. Think of a perimeter as the length along the border of a triangle. If a metal wire is bent to form a triangle, the ... read more ››