Ied: Unit 5 Study Guide

Front 1

Acute Triangle

Back 1

A triangle that contains only angles that are less than 90 degrees

Front 2

Angle

Back 2

The amount of rotation needed to bring one line or plane into coincidence with another, generally measured in radians or degrees

Front 3

Area

Back 3

The number of square units required to cover a surface

Front 4

Axis

Back 4

An imaginary line through a body, about which it rotates. An imaginary line about which a regular figure is symmetrically arranged. A fixed reference line for the measurement of coordinates.

Front 5

Center of Gravity

Back 5

A 3D point where the total weight of the body may be considered to be concentrated

Front 6

Centroid

Back 6

A 3D point defining the geometric center of a solid

Front 7

Circle

Back 7

A round plane figure whose boundary consists of points equidistant from the center

Front 8

Circumscribe

Back 8

A triangle located round a polygon such as a circle. To draw a figure around another, touching it at points but not cutting it.

Front 9

Cylinder

Back 9

A solid composed of two congruent circles in parallel planes, their interiors, and all the line segments parallel to the axis with endpoints on the two circles

Front 10

Density

Back 10

The measure of mass density is a measure of mass per volume

Front 11

Diameter

Back 11

A straight line passing from side to side through the center of a circle or sphere

Front 12

Ellipse

Back 12

A shape generated by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant and equal to the major axis

Front 13

Fillet

Back 13

A curve formed at the interior intersection between two or more surfaces

Front 14

Inscribe

Back 14

To draw a figure within another so that their boundaries touch but do not intersect

Front 15

Mass

Back 15

The amount of matter in an object or the quantity of the inertia of the object

Front 16

Meniscus

Back 16

The curved upper surface of a liquid column that is concave when the containing walls are wetted by the liquid and convex when not

Front 17

Obtuse Triangle

Back 17

A triangle with one angle that is greater than 90 degrees

Front 18

Parallelogram

Back 18

A four-sided polygon with both pairs of opposite sides parallel

Front 19

Pi (TT)

Back 19

The numerical value of the ratio of the circumference of a circle to its diameter of approximately 3.14159.

Front 20

Polygon

Back 20

Any plane figure bounded by straight lines

Front 21

Principal Axes

Back 21

The lines of intersection created from three mutually perpendicular planes, with the three planes' point of intersection at the centroid of the part

Front 22

Prism

Back 22

A solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms

Front 23

Quadrilateral

Back 23

A four-sided polygon

Front 24

Radius

Back 24

A straight line from the center to the circumference of a circle or sphere

Front 25

Rectangle

Back 25

A parallelogram with 90 degree angles.

Front 26

Regular Polygon

Back 26

A polygon with equal angles and equal sides

Front 27

Right Triangle

Back 27

A triangle that has a 90 degree angle

Front 28

Round

Back 28

Two or more exterior surfaces rounded at their intersections

Front 29

Square

Back 29

A regular polygon with four equal sides and four equal angles

Front 30

Surface Area

Back 30

The squared dimensions of the exterior surface

Front 31

Tangent

Back 31

A straight or curved line that intersects a circle or arc at one point only

Front 32

Title Block

Back 32

A table located in the bottom right-hand corner of an engineering drawing that identifies, in an organized way, all of the necessary information that is not given on the drawing itself

Front 33

Triangle

Back 33

A polygon with three sides

Front 34

Vertex

Back 34

Each angular point of a polygon, polyhedron, or other figure

Front 35

Volume

Back 35

The amount of three-dimensional space occupied by an object or enclosed within a container

Front 36

Quadrilateral

Back 36

A four-sided polygon

Front 37

Space

Back 37

The dimensions of height, depth, and width within which all things exist and move. A free or unoccupied area or expanse.

Front 38

Maximum Material Condition (MMC)

Back 38

The largest limit of an external feature and the smallest size limit of an internal feature

Front 39

Tap

Back 39

To cut internal threads