Lines, Segments, Rays, Angles and Triangles

Front

What is an obtuse triangle?

Back

A triangle that has one obtuse angle (greater than 90 degrees).

Tags

CCSS.4.G.A.2

Front

Define a line in geometry.

Back

A straight path that extends infinitely in both directions.

Tags

CCSS.4.G.A.1

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

How do you classify a triangle with one right angle?

Back

It is classified as a right triangle.

Tags

CCSS.4.G.A.2

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is the sum of the interior angles of a triangle?

Back

The sum is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is a ray in geometry?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Tags

CCSS.4.G.A.1

Front

How many sides does a triangle have?

Back

A triangle has three sides.

Tags

CCSS.2.G.A.1

Front

What is the difference between acute and obtuse angles?

Back

An acute angle measures less than 90 degrees, while an obtuse angle measures more than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.

Tags

CCSS.4.G.A.2