Area of Triangle Formula: In this article, we cover the definition of triangle and its various types based on the angles and length of side. Besides, we will see how to calculate the area of a ...

\(a^2 + b^2 = c^2\) calculates the length of the longest side. To calculate the length of one of the shorter sides, rearrange the formula to make \(a^2\) or \(b^2\) the subject. \(a^2 = c^2 - b^2\) or ...

Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The ...

A triangle is a polygon. It is a closed 3-sided shape made up of straight lines. The ‘tri-’ part of the word triangle means three. A triangle has 3 sides and 3 angles. Interior angles are the angles ...