5th grade geometry
Terms in this set (40)
A measure of how much space a solid (3-dimensional) object takes up OR how much a container will hold.
Volume is measured in cubic units.
The amount of surface inside a closed figure.
Area is measured in squared units.
The distance around a 2-dimensional shape - the outside "rim" of the shape.
The "flipping" of a figure over a line so that its image is the mirror image of the original figure.
area of a triangle
A = ½
area of a rectangle OR parallelogram
A = b * h
volume of a prism
V = B * h where "B" is the area of the base of the prism and "h" is the height of the prism
an angle less than 90 degrees but more than 0 degrees
an angle that measures more than 90 degrees but less than 180 degrees
an angle that measures exactly 90 degrees
an angle greater than 180 degrees (but less than 360)
the bottom side of a geometric figure
reach, make, or come to a decision about something
the measurements of an object's length, width, and height
An imaginary machine used in MATHEMATICS to change numbers according to a given rule.
solve (find the answer); judge
exact correspondence of form on opposite sides of a dividing line
a triangle with three congruent/equal sides
A triangle with at least two congruent sides
a triangle with one interior obtuse angle
a triangle with one right angle
a letter that represents one or more numbers that can be changed
A closed plane figure made up of line segments with many (poly) angles (three or more)
a five-sided polygon
An eight-sided polygon
a six-sided polygon
same shape and same size
a quadrilateral with two parallel sides
The common endpoint of an angle
A rhombus is a quadrilateral whose sides are all the same length (congruent) and whose opposite interior angles are the same size (congruent.) Really, a ________ is just a square that someone sat on and squished! (ouch)
a polygon with 4 sides
A precise location or place on a plane. Usually represented by a dot.
Opposite angles of a __________ are the same size/measure (congruent.)
Opposite sides of a __________ are parallel... Uh... You think that's where it got it's name? This is a rectangle that a giant sat on and squished.
Two lines (lying in the same plane) are parallel if they never intersect... This means that the two lines are always the same distance apart. Lines that will never meet, no matter how long you stretch them (like railroad tracks!)
a part of a line that has two endpoints
a straight path that extends without end in opposite directions
lines that cross at one point