Download Geometry * Grade 5

Geometry – Grade 5
2-D Shapes
Vocabulary You Need to Know!
Point
An exact, specific
position
Line
Extends to
infinity in both
directions from a
specific point
Line
Segment
A line that begins
at one specific
point and ends at
another specific
point
Vocabulary You Need to Know!
Angle
Acute
Angle
Obtuse
Angle
The figure formed
when two lines
intersect at a point
An angle whose
measure is less
than 90 degrees
An angle whose
measure is more
than 90 degrees
Vocabulary You Need to Know!
Plane
Figure
A flat, 2-D figure
– it has no depth.
The point where
2 sides intersect
is call the vertex
(vertices)
Polygon
A closed figure
made of line
segments
Triangle
A three sided
polygon
Triangles!
Equilateral
A triangle with
three equal sides
Isoscolese
A triangle with
two equal sides
Scalene
A triangle with
three different
side lengths
Right
A triangle with a
right angle
Quadrilateral
A polygon with
4 sides
Regular
A quadrilateral
whose sides are
the same length
and the angles
are the same
Irregular
A quadrilateral
whose sides and
angles are
different
Quadrilaterals!
Trapezoid
Parallelogram
Rhombus
A quadrilateral
with exactly one
pair of parallel
sides
A quadrilateral
with two pair of
parallel sides
A quadrilateral
with 4 equal
sides
Quadrilaterals!
Rectangle
Square
A quadrilateral
with 2 sets of
parallel sides and
4 equal angles
A quadrilateral
with 2 sets of
parallel sides of
equal length and
4 equal angles