Important Thing About Practical Geometry - The Dream

 Important Thing About Practical Geometry.

Hello friends. I am Anand. As always, once again welcome all of you to The Dream. 

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Today we will know about "Important Things About Practical Geometry".

As you all know that Practical Geometry is a subject of Mathematics. If seen, it is not that difficult to make and it is not even easy. It take some efforts to make. To make this, we also need some geometry tools.

So let us know which geometry tool is needed to make and how to make it.

Geometry Tools:-

1. Ruler- Who doesn't use a ruler nowadays? If we are making geometry in mathematics, then we have to use ruler. We can not construct any geometry without ruler. You must have seen many types of rulers like, just as some rulers are 15 centimeter, some rulers are 30 centimeter and more.

What does the ruler look like?

There will hardly be anyone who has not seen the ruler. Ruler almost everyone must have seen.

Now it comes to why and how the scale is used?

Scale is used to do many things, some of which are as follows, to draw a line, to measure a line and many more. A scale picture is given the bottom.

2. Compass- Many of you must have seen and used compass. A picture of compass is given in the bottom.

Compass is in a "V" shape. One side of the "V" shape remains the needle and on the other side of the "V" shape there is a pencil. 

Now it comes to what can we use the compass for?

We can do a lot of things with compass. Some as follows- We can draw circle with compass, we can draw arc with compass. With the compass, we can make an angle divided by 15. We can divide the line into two parts with the help of compass. We can also make many angles and quadrilaterals using the compass.

3. Protractor- Many of you must have used a protractor.

You can use it in two ways:-

(i) To measure a given angle:

You can use it to measure a given angle. How? Take the protractor and place it at one end point of one of the lines and match the angle drawn with the angle drawn of the protractor. In this way you can find the angle of a given line.

A picture of protractor is given in the bottom.

(ii) Making a given angle:

If you have only been given the measurement of angle and you have to make it, then you can use protractor in such situation also. First draw a line. After drawing the line, place the protractor at one end point of the line and find the given angle in the protractor. Make a point after finding the angle. After making the point, join the end point of the line at which you placed the protractor and the point found by the protractor. Now measure the angle created. Is this a right angle?

4. Set Square- Many of you must have used a set square. Sometimes it is difficult to use it.

A picture of set square is given in the bottom.

5. Divider- The divider is the easiest to use of all the tools mentioned above.

It's just like a compass. It is also "V" shaped tool. The only difference in compass and the divider is that the compass has a needle on one side and a pencil on other side. While the divider has a needle on both sides.

Now many people must be thinking that when there is a needle on both sides of the divider, how will it be used?

We can use divider to measure a line. It can also be used to find the measure of a line.

A picture of divider is given in the bottom.

Thank you. Have a nice day to all.