# 5.1 Phy1020: brief trigonometry tutorial  (Page 4/20)

 Page 4 / 20
• 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.

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 .

are nano particles real
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
no can't
Lohitha
where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
what king of growth are you checking .?
Renato
Got questions? Join the online conversation and get instant answers!