## How do you classify triangles by their sides?

Classifying Triangles by Sides
1. scalene triangle-a triangle with no congruent sides.
2. isosceles triangle-a triangle with at least 2 congruent sides (i.e. 2 or 3 congruent sides)
3. equilateral triangle-a triangle with exactly 3 congruent sides.
4. NOTE: Congruent sides means that the sides have the same length or measure.

## What are the 4 ways to classify a triangle?

Classifying triangles by their side lengths
• Equilateral triangles. …
• Isosceles triangles. …
• Scalene triangles.

## What are the 6 ways to categorize triangles?

The six types of triangles are: isosceles, equilateral, scalene, obtuse, acute, and right. An isosceles triangle is a triangle with two congruent sides and one unique side and angle.

## What is the classification of the triangle by its angles and by its sides?

An acute triangle has three angles that each measure less than 90 degrees. An equilateral triangle is a triangle in which all three sides are the same length. An obtuse triangle is a triangle with one angle that is greater than 90 degrees. A right triangle is a triangle with one 90 degree angle.

## What are the 7 types of triangles?

To learn about and construct the seven types of triangles that exist in the world: equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene.

## What are sides of triangle called?

Inside the triangle, an arrow points from point C to the hypotenuse. The hypotenuse is labeled hypotenuse. The other two sides are called the opposite and adjacent sides. These sides are labeled in relation to an angle.

## What is classification in geometry?

What is Classification in Math? Classification means arranging or sorting objects into groups on the basis of a common property that they have. If you have a group of things, such as fruits or geometric shapes, you can classify them based on the property that they possess.

## How do you tell if a triangle is acute or obtuse based on side lengths?

How do I know if a triangle is acute based on side lengths?
1. Compute the sum of squares of the two smaller sides.
2. Compare it to the square of the longest side. If the sum is greater, your triangle is acute. If they are equal, your triangle is right. If the sum is shorter, your triangle is obtuse.

## How do you classify a triangle as acute right or obtuse?

An acute triangle has three angles that each measure less than 90 degrees. An obtuse triangle is a triangle with one angle that is greater than 90 degrees. A right triangle is a triangle with one 90 degree angle.

## What are the 7 types of triangles?

To learn about and construct the seven types of triangles that exist in the world: equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene.

## How do you name triangles with side lengths?

Classifying Triangles by Sides
• If all the sides are equal (the same length) then the triangle is EQUILATERAL. …
• If 2 sides of the triangle are the same length then the triangles is an ISOSCELES triangle. …
• If all three sides of the triangle are a different length then the triangle is a SCALENE triangle.

## What are the 3 sides of a triangle called?

In a right triangle, the hypotenuse is the longest side, an “opposite” side is the one across from a given angle, and an “adjacent” side is next to a given angle.

## What are the different types of triangles and their properties?

Equilateral Triangle: All the sides are equal and all the three angles equal to 60Â°. Acute Angled Triangle: A triangle having all its angles less than 90Â°. Right Angled Triangle: A triangle having one of the three angles exactly 90Â°. Obtuse Angled Triangle: A triangle having one of the three angles more than 90Â°.

## What are the 12 types of triangles?

Match
• Scalene Triangle. A triangle that has no congruent sides.
• Acute Triangle. A triangle that has all three angles with measures of less than 90 degrees.
• Obtuse Triangle. A triangle that has one angle with a measure of greater than 90 degrees.
• Isosceles Triangle. …
• Equilateral Triangle. …
• Right Triangle.

## How do you explain a triangle?

What are triangles? A triangle is a three-sided polygon, which has three vertices. The three sides are connected with each other end to end at a point, which forms the angles of the triangle. The sum of all three angles of the triangle is equal to 180 degrees.

## What is the sum of all 3 sides of a triangle?

Answer: The sum of the lengths of the three sides of a triangle is called its perimeter.