Classifying Triangles

Front

What is a triangle classified by its sides and angles?

Back

A triangle can be classified as scalene, isosceles, or equilateral based on its sides, and as acute, right, or obtuse based on its angles.

Front

What type of triangle has all sides of different lengths?

Back

Scalene triangle.

Front

What type of triangle has at least two sides of equal length?

Back

Isosceles triangle.

Front

What type of triangle has all sides of equal length?

Back

Equilateral triangle.

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is an acute triangle?

Back

A triangle that has all angles less than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

How many congruent sides does an isosceles triangle have?

Back

Two congruent sides.

Front

Can a right triangle be equilateral?

Back

No, a right triangle cannot be equilateral because it cannot have all angles equal to 60 degrees.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180 degrees.