RD Sharma Class 10 Solutions Chapter 11 - Constructions (Ex 11.2) Exercise 11.2 - Free PDF
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Geometrical Constructions are the Geometrical figures that we construct using Geometrical instruments. Each of these instruments or tools have a different working of their own.
Some of the most used geometric tools are as follows:
Rulers are used to measure the length of a line segment and to construct it as well. It is used in geometry as well as engineering applications. It is initially used for drawing straight lines. Generally, for our convenience, rulers have centimeters and millimeters on one side and inches on the other side. The intervals of the markings mentioned on the ruler are called hash marks.
A Compass is a ‘V’-shaped tool that can hold a pencil on one side and a pointed end on the other side. The distance between the two is adjustable. Compass is used to trace arcs, circles, angles, etc. it can also be used to mark equal lengths. Compass is one of the most used Mathematical tools which is used to draw a geometrical figure, such as a circle. It is also used to make the intersection of line segments and tools, which is used to intersect the line segment and helps us to find the midpoint of the shapes.
A Protractor is a semi-circular instrument used to construct and measure different angles. It starts from 0 degrees and goes up to 180 degrees and can be used directly to measure any angle within this range. It has two sets of markings. 0 to 180 degrees from left to right of the instrument and vice versa. While measuring an angle using a protractor, we need to follow the steps that are given below:
If the angle is to be measured at the left side of the protractor, we have to use the outer reading provided in the protractor.
If the angle is to be measured at the right side of the protractor, we have to use the inner reading provided in the protractor.
A divider looks similar to a protractor. The only difference is that it has pointed ends on both sides. The distance between these sides is adjustable. A Divider is used to measure and compare the lengths. Dividers have two ends in which one sharp endpoint is used as a center, and the other sharp endpoint is used for marking.
Set squares are also one of the Mathematical tools, which are found commonly in geometry boxes. These are triangular in shape. There are two kinds of set squares where one has an angle of 45 degrees and the other has 30-60 degrees. The 45 degree set square has an angle of 90 degrees, and also 30/60 degree set square has a right angle. The 45 degrees set square is used to draw vertical lines. These are also used to draw parallel lines, perpendicular lines, make some standard angles, and so on.
FAQs on RD Sharma Class 10 Solutions Chapter 11 - Exercise 11.2
1. What does the RD Sharma solutions for Class 10 Chapter 11 cover?
RD Sharma Class 10 Solutions Chapter 11 covers the solutions for all the important Constructions of geometry for Class 10 students in their Exams. Practicing this free PDF will help students score good marks in their Exams as there will be at least 1 to two questions in which they will be needing to construct geometric figures.
2. Is making geometric figures tough in geometrical Constructions?
Construction of the geometric figures is not necessarily hard or tough. It just has a set of steps that the student has to follow to successfully complete the Construction. Students need to have good practice over the Constructions and follow the steps thoroughly to get the Constructions done the right way.
3. Is geometrical construction important for Exams?
Yes. Geometrical Constructions are important for Exams as there will be at least one question based on this topic. It is highly necessary to practice multiple questions on this topic.
4. What are the most important instruments used to construct geometric figures?