considered the written language ir industry

where present letters originated

modified writing into a more read able tyoe which became the basis of the present day letters

ancient greeks writing

wedge-shaped;,writing took the form of symbols used by phoenicians

all letters have uniform width and thicness. Common in posters,biliboard sign and car card

all letters have accented strokes mad up of thin and thick elemets. Generally used in printing newspapers, magazines and book

all letters are stlanting. The preferred angle of inclination for it is 67.5°

thick lines used to indicate an imaginary cut through an object along the line

is a location of a space shown by two intersecting line, across bar on a line, or by small cross

is the distance between two points or a path of a moving point

the measurement of the distance between two intersecting lines with a common point the unit of measurement is a degree a circle 360° a straight angle has 180°

it is a figure of a closed curve all points of which are equidistant from the center

the distance between the circle

a straight line drawn through the center of a circle meeting the circumference at both ends

any part of the circumference

any straight line drawn across the circle meeting the circumference at both end

a part of a circle bounded by an arc and the chord

part of a circle bounded by 2 radii and an arc

a part of a circle bounded by two radii at right angles and an arc

a straight line which touches the circumference in only one point even if the line is extend to any direction

a straight line drawn from the center to the circumference

a straight line intersecting a given curve

it is a figure bounded by three sides and the sum of its interior angle is equal to 180°

has four sides and angle

it's opposite sides are equal and all its angle are right angle

all eight sides are equal and its angle are other than right angle. it is also an isometric of a square

it's opposite sides are parallel and equal

no two side parallel

a plane figure bounded by straight lines with equal sides and angle

airlines which make an angle of 90° with each other

a thick line that represents the visible edge or outline of the object it is also known as object line

a medium thick line composed of short dashes about 2 to 3 mm a long space between dashes about 1 to 2 mm wide it represent the surface or edges that cannot be seen

a thin line consisting of two long dashes and short dash drawn alternately with a gap of at least 2 mm in between it represent the axis or center of symmetrical shaped like a ball washer rectangular black or cube

a thin line that extends from the object in order to show dimension limits

a thin line with an arrowhead in one end used to indicate the measurement of the object

a medium line consisting of broken and straight lines drawn alternately this is also known as the limiting line this limits the length of an elongated object without changing the sides of its

decline drone in freehand to show detail tatapart has been cut off for broken out

a short inclined thin line with an arrowhead at the end in short horizontal line on the other end

a thin line that shows positions of part of an object that moves it is drawn by two short dashes and one long dashes

does not groove easily when pressure is applied

to hold or fastening

clean the dirt remove the

enlarge

drawing arcs and circle

transfer measurements dividing lines

semicircular 180 to measure circles

is used to show the different views of an object drawn on a flat sheet

orthos

grapos

is a system from graphical representation of an object by line drawing on a flat surface

is a drawing that shows a side of an object view directly from 90°

is a drawing that shows more than one view of an object

is a pictorial drawing showing the three surface of the object tilted 30° in front of the observer 30x 60x 90 triangle is used

but the most important view when a multi view drawing are the

iso

metric