5th Vocabulary Week 25-26

Front

A straight path of points that goes on in both directions

Back

Line

Front

A line segment with only one end point.

Back

Ray

Front

A triangle with three equal sides

Back

Equilateral Triangle

Front

Two rays joined at a common endpoint

Back

angle

Front

Angle that measures less than 90 degrees

Back

Acute Angle

Front

An angle that measures exactly 90 degrees

Back

Right Angle

Front

An angle that measures greater than 90 degrees, but less than 180 degrees.

Back

Obtuse Angle

Front

Angle that measures exactly 180 degrees.

Back

Straight Angle

Front

Lines that intersect to form a right angle.

Back

Perpendicular Lines

Front

The point where two rays meet, the corner of an angle.

Back

Vertex