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  • The origin
  • x=3, y=0
  • x=3, y=4

(If you are able to use the svg file mentioned below to create tactile graphics, it probably won't be necessary for you to do the graph-board exercise. You can explore the tactile graphics instead.)

The vertices of a right triangle

Each pushpin represents a vertex of a right triangle. If you enclose all three pushpins with a rubber band, you will have "drawn" a right triangle withits base on the horizontal axis.

The base of the triangle will have a length of three units. Another side of the triangle will have a length of four units. The hypotenuse of the triangle will have still another length.

The angle at the origin

The base and the hypotenuse will form an angle at the origin opening outward to the right. As mentioned before, the base will be on the horizontalaxis. The side that connects the base and the far end of the hypotenuse will be parallel to the vertical axis.

Names for the three sides of the right triangle

Lets establish some names for the three sides of the right triangle when located on the graph board in this manner.

We will continue to refer to the hypotenuse as the hypotenuse and abbreviate it hyp . We will refer to the base as the adjacent side relative to the angle at the origin and abbreviate it adj . We will refer to the third side as the opposite side relative to the angle at the origin and abbreviate it opp .

Tactile graphics -- the file named Phy1020b1.svg

Much of the material in the next several paragraphs will only make sense to you if you are very familiar with the module named Manual Creation of Tactile Graphics .

When you downloaded the zip file named Phy1020.zip using the link given above , you should have found that the zip file contains a file named Phy1020b1.svg.

The purpose of this file is to make it possible for you to create tactile graphics for the right triangle. The procedure for creating the tactilegraphics is explained in the earlier module named Manual Creation of Tactile Graphics .

Image from file Phy1020b1.svg

For the benefit of any sighted persons that may be assisting you, Figure 2 shows a reduced version of the graphic contained in the file named Phy1020b1.svg. This is a mirror image of the imagethat is to be presented to the student after embossing. A non-mirror-image version is presented in Figure 19 .

Figure 2 . Mirror image from file Phy1020b1.svg.
Missing image

Page Setup information

If you use the IVEO Viewer software to print this svg file, you will need to set up the page by selecting Page Setup on the IVEO File menu. The Page Setup information for this file is shown in Figure 3 . These are the default settings for Letter (Portrait) in IVEO.

Figure 3 . Page Setup for file Phy1020b1.svg.
Paper List: Letter (Portrait) Paper Width: 8.5 inchPaper Height: 11.0 inch Orientation: portraitLeft Margin: 0.75 inch Right Margin: 0.3 inchTop Margin: 0.75 inch Bottom Margin: 0.3 inch

Braille keys

Note that the file named Phy1020b1.svg and Figure 2 contain keys using the characters from "m" through "z" and "A" that can be used to createBraille characters during manual embossing. The key characters are shown in an oblique font that is smaller than the normal text. The purpose of these keys isexplained in the earlier module titled Manual Creation of Tactile Graphics .

Questions & Answers

anyone know any internet site where one can find nanotechnology papers?
Damian Reply
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Mueller Reply
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Source:  OpenStax, Accessible physics concepts for blind students. OpenStax CNX. Oct 02, 2015 Download for free at https://legacy.cnx.org/content/col11294/1.36
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