Naming Triangles Review

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides have different lengths.

Front

How can you classify a triangle by its angles?

Back

Triangles can be classified as acute (all angles less than 90°), right (one angle is exactly 90°), or obtuse (one angle is greater than 90°).

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What defines an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all angles are equal (each measuring 60°).

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring exactly 90°.

Front

How do you identify a right isosceles triangle?

Back

A right isosceles triangle has one right angle and two sides of equal length.

Front

What is the sum of the angles in any triangle?

Back

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

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90°.

Front

How can you classify a triangle by its sides?

Back

Triangles can be classified as scalene (all sides different), isosceles (two sides equal), or equilateral (all sides equal).

Front

What is the difference between acute and obtuse triangles?

Back

Acute triangles have all angles less than 90°, while obtuse triangles have one angle greater than 90°.