# “6th Grade MathThematics Module 7. Sections 1-5 Collective”

square inch (in.^2) 144 sq. inches = 1 square foot
square foot (ft.^2) 9 sq. feet = 1 square yard
square yard (yd.^2) 4840 sq. = yards = 1 acre
intersect two segments or figures that meet at a common point
perpendicular the relationship between two lines or segments that meet at a right angle
height (of a parallelogram) the perpendicular distance between bases of a parallelogram
base (of a parallelogram) the bottom line of a parallelogram
base (of a triangle) the bottom line of a triangle
height (of a triangle) the measurement from the top to the bottom of a triangle
volume the amount of space an object contains
cubic unit a unit for measuring volume
cubic centimeter a standard unit for measuring volume equivalent to 1000 cubic millimeters
plane a flat surface that extends forever
prism a type of space figure made up of flat surfaces that re shaped like polygons. It has two bases that are congruent and lie in parallel planes. The other faces are parallelograms
face a flat surface of a space figure
base of a prism the polygon plane of a prism
edge a segment on a space figure where two faces meet
vertex (plural : vertices) a point where three or more edges meet
net a flat figure that can be cut out and folded to form a space figure
pyramid a space figure that has one polygon-shaped base. All the other faces are triangles that meet at a single vertex
ounce (oz) standard imperial unit for measuring weight: equal to 437.5 grains
pound (lb) standard imperial unit for measuring weight: equal to 16 ounces
ton standard imperial unit for measuring weight: equal to 2000 pounds
circle the set of points in a plane that are all the same distance from a given point, the center
center the middle point of an object
radius (plural: radii) a segment from the center of a circle to any point on the circle and the length of such a segment
chord a segment that connects two points on a circle
diameter a chord that passes through the center of a circle and the length of such a chord
circumference the distance around a circle
pi the ratio of circumference to diameter for any circle. The value is approximately 3.14
cylinder a space figure that has a curved surface and two parallel, congruent bases