Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...

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 ...

An equilateral triangle has all sides the same length. An equilateral triangle is also a regular polygon with all angles measuring 60°. An isosceles triangle has two sides of equal length. An ...

{This web page will enable the user to input the length of the sides of a triangle and it should output whether the triangle is an equilateral, isosceles, or scalene triangle.} ...

Types of triangle: By lengths of sides (equilateral, Isosceles, Scalene) By internal angles (Right, Obtuse, Acute). vector illustration for educational and science use Set of simple geometric shapes.