Geometry Terms
A straight path of points that goes on forever in both directions.
Parallel Sides
An angle measuring 90 degrees.
a right angle
A 4-sided polygon.
a quadrilateral
The number of degrees in every triangle.
180 degrees
A quadrilateral with one pair of parallel sides.
a trapezoid
A part of a line that has one endpoint and extends forever in one direction.
a ray
An angle measuring less than 90 degrees.
an acute angle
A 5-sided polygon.
a pentagon
These are the three types of triangles according to their angles.
acute, obtuse, and right
The total number of degrees in every quadrilateral.
360 degrees
An exact location.
a point
An angle measuring more than 90 degrees.
an obtuse angle
A 6-sided polygon.
a hexagon
These are the three types of triangles according to their sides.
equilateral, isosceles, and scalene
Any parallelogram with all four sides the same length.
a rhombus
A part of a line that has 2 endpoints.
line segment
A tool used to measure angles.
a protractor
The term used to describe a polygon having all equal sides and equal angles.
regular polygon?
The missing angle if a triangle has angles measuring 45, 90, and ______ degrees.
45 degrees
The missing measurement of a quadrilateral with these angles: 50 degrees, 98 degrees, 75 degrees, and __________.
137 degrees
Lines that intersect and form square corners.
perpencicular lines
The point where two lines meet and form an angle.
a vertex
By definition, a polygon must have these two characteristics.
straight lines and a closed figure
Visual Clue: The two names used to classify this triangle.
acute and scalene
Three shapes that are also parallelograms.
squares, rectangles, and rhombuses