Classifying Triangles

Front

What is an acute triangle?

Back

An acute triangle is a triangle in which all three angles are less than 90 degrees.

Front

What defines a right triangle?

Back

A right triangle is defined as a triangle that has one angle exactly equal to 90 degrees.

Front

What is an equilateral triangle?

Back

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

Front

What type of triangle has one angle greater than 90 degrees?

Back

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

Front

How can you identify an isosceles triangle?

Back

An isosceles triangle is identified by having at least two sides of equal length and the angles opposite those sides are equal.

Front

What is the sum of the angles in any triangle?

Back

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

Front

If a triangle has angles measuring 54°, 52°, and 74°, what type of triangle is it?

Back

It is an acute triangle because all angles are less than 90 degrees.

Front

What is the relationship between the sides and angles in a triangle?

Back

In a triangle, the largest angle is opposite the longest side, and the smallest angle is opposite the shortest side.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides are of different lengths and all three angles are of different measures.

Front

How do you classify a triangle based on its sides?

Back

Triangles can be classified based on their sides as equilateral, isosceles, or scalene.