Classifying Triangles

Front

What is an acute triangle?

Back

A triangle where all angles are less than 90°.

Tags

CCSS.4.G.A.2

Front

What characterizes a right triangle?

Back

A triangle that has one right (90°) angle.

Tags

CCSS.4.G.A.2

Front

What type of triangle has all sides of equal length?

Back

An equilateral triangle.

Tags

CCSS.4.G.A.2

Front

What defines an isosceles triangle?

Back

A triangle that has at least two congruent sides.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Tags

CCSS.4.G.A.2

Front

What is the sum of the angles in any triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

How can you identify an obtuse triangle?

Back

A triangle that has one angle greater than 90°.

Tags

CCSS.4.G.A.2

Front

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

Back

In a triangle, the larger the angle, the longer the opposite side.

Tags

CCSS.HSG.CO.C.10

Front

What is a right angle?

Back

An angle that measures exactly 90°.

Tags

CCSS.4.G.A.1

Front

What is the difference between an equilateral and an isosceles triangle?

Back

An equilateral triangle has all sides equal, while an isosceles triangle has at least two sides equal.

Tags

CCSS.4.G.A.2