Quadrilaterals
n-gons
Angles, Lines and Rays
Geometry Terms
More Terms

100

What is a quadrilateral with sides that are the same length and has 4 right angles?
a square

100

What is a polygon with three equal length sides called?
an equilateral triangle

100

What is an angle that measures 90 degrees?
a right angle

100

What is the endpoint called where the rays or segments in an angle meet?
the vertex

100

What is the vertex in >TGB?
G

200

What is the a quadrilateral that has sides that are the same length but does not have right angles?
a rhombus OR a parallelogram

200

What is a 5 sided polygon called?
a pentagon

200

What is a straight path that has one starting point and goes on forever in one direction?
a ray

200

What is the unit of measure for an angle called?
degree

200

What are two names for a parallelogram that has all sides the same length, but is not a rectangle?
square, rhombus

300

What is a quadrilateral that has four right angles called?
a rectangle OR a square

300

What is an 8 sided polygon called?
an octagon

300

What is a straight path that goes on forever in both directions?
a line

300

What is an angle whose sides form a straight path?
a straight angle

300

What is the name of an angle that is less than 90 degrees?
acute

400

What is a quadrilateral that has only adjacent sides the same length and does not have right angles.
a kite

400

What is a 10 sided polygon called?
a decagon

400

What is made up of 2 points and the straight path between them?
a line segment

400

What is it called when two line segments, lines or rays cross?
intersect

400

What is the name of an angle that is greater than 90 degrees, but less than 180 degrees?
obtuse

500

What is a quadrilateral that only has one set of parallel sides?
a trapezoid

500

What is a 12 sided polygon called?
a dodecagon

500

What is formed by 2 rays or 2 line segments that share an endpoint?
an angle

500

What is it called when lines, line segments or rays cross at a 90 degree angle?
perpendicular

500

What is the name of an angle that is greater than 180 degrees, but less than 360 degrees?
reflex