Classifying Triangle

Classifying Triangle

By: Albert & Johnny

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classifying triangles

Classifying Triangles According to the Sides

If the three side all have different length, it is called a scalene triangle.

Classifying Triangles According to the Sides

If two or more sides have the same length, it is called an isosceles triangle.

Classifying Triangles According to the Sides

If all sides have the same length, it is called an equilateral triangle.

Classifying Triangles According to the Angles

If no angles are greater than 90 degrees, it is an acute triangle.

Classifying Triangles According to the Angles

If one angle is 90 degrees, it is a right triangle.

Classifying Triangles According to the Angles

If one angle is greater than 90 degrees, it is an obtuse triangle.

Quiz Time!

classifying triangles

Multiple Choice

Which of these is an obtuse triangle?

Multiple Choice

What is this triangle ?

• acute scalene triangle

• acute equilateral triangle

• obtuse isosceles triangle

• right scalene

• acute isosceles triangle

Multiple Choice

How do you know if one triangle is an obtuse triangle?

• To see if the three sides are the same

• To see if one angle is greater than ninety degrees

• To see if the three sides are different

Multiple Choice

How do you know if one triangle is an scalene triangle?

• To see if all the sides have the same length

• To see if one angle is ninety digrees

• To see if all the sides have different length

Multiple Choice

What is an equilateral triangle?

• A triangle with one angle greater than ninety degrees

• A triangle with three 60-degree angles.

• A triangle with three different side length.

Multiple Choice

Whch shape is a equilateral triangle?

Multiple Choice

What is this triangle?

• acute scalene

• obtuse scalene

• right scalene

• right isosceles

Multiple Select

What is this triangle?

• Green triangle

• Green Isosceles Triangle

• Isosceles Triangle

• Right triangle

• Happy Trianlge

Multiple Choice

What is an acute isosceles triangle?

• Any triangle

• Any two triangle

• a triangle with two or more same sides and three angles less than ninety degrees.

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