scalene, equilateral, isosceles and right angle triangles
to tell what the angle is
The primary classification of a polygon is according to the number of sides (or vertices) that it has.If all the sides are of equal length and all the angles are of the same measure then it is a regular polygon.If any of the angles is a reflex angle then it is a concave polygon, otherwise it is convex.
All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classified as follows:- Scalene has 3 acute angles of different sizes and different sides Right has a 90 degree angle and 2 acute angles with 2 sides being perpendicular Obtuse has an obtuse angle and 2 different acute angles and different sides Isosceles has has 2 equal angles and an apex angle and 2 equal sides Equilateral has 3 equal angles each being 60 degrees and 3 equal sides Acute angle is greater than 0 but less than 90 degrees Right angle is 90 degrees Obtuse angle is greater than 90 but less than 180 degrees
Classification of triangles by their sides:equilateral = 3 sides are equalisosceles = 2 sides are equalscalene =no equal sideClassification of triangles by their angles:acute = the 3 angles are less less than 90 degreesright = it has an angle which is 90 degreesobtuse = it has an angle which is more than 90 degrees
by how long it is
scalene, equilateral, isosceles and right angle triangles
to tell what the angle is
The primary classification of a polygon is according to the number of sides (or vertices) that it has.If all the sides are of equal length and all the angles are of the same measure then it is a regular polygon.If any of the angles is a reflex angle then it is a concave polygon, otherwise it is convex.
All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classified as follows:- Scalene has 3 acute angles of different sizes and different sides Right has a 90 degree angle and 2 acute angles with 2 sides being perpendicular Obtuse has an obtuse angle and 2 different acute angles and different sides Isosceles has has 2 equal angles and an apex angle and 2 equal sides Equilateral has 3 equal angles each being 60 degrees and 3 equal sides Acute angle is greater than 0 but less than 90 degrees Right angle is 90 degrees Obtuse angle is greater than 90 but less than 180 degrees
Classification of triangles by their sides:equilateral = 3 sides are equalisosceles = 2 sides are equalscalene =no equal sideClassification of triangles by their angles:acute = the 3 angles are less less than 90 degreesright = it has an angle which is 90 degreesobtuse = it has an angle which is more than 90 degrees
No angle has 10 sides. An angle has two sides.
You can classify a triangle by its sides, or by its angles.To classify a triangle by its sides:1- A triangle with three sides that are equal in length is called an equilateral triangle.2- A triangle with two sides of the same length and one different is called an isosceles triangle. 3- A triangle with no sides of equal length is called a scalene triangle. To classify a triangle by its angles: 1- A triangle with three angles that are greater than 0 and less than 90 degrees is called an acute triangle.2- A triangle with one angle that is 90 degrees exactly is called a right angle triangle.3- A triangle with one angle that is greater than 90 degrees is called an obtuse triangle.
An angle of 90 degrees is a right angle.
Angle C is an acute angle.
You classify a quadrilateral by its sides, angles, and its vertices.
All angles equal = all sides equal = equilateral. Two angles equal = two sides equal = isosceles. All angles different = all sides different = scalene. An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).