Constructing a Line Segment
We will discuss here about constructing a line segment. We
know how to draw a line segment of a certain length. Suppose we want to draw a
line segment of 4.5 cm length.
We follow the following steps as given below:
Step I: We place a scale on a paper sheet as shown below.
Step II: We place the sharp point of a pencil on the point
which coincides with 0 on the scale and name it as A.
Step III: We mark another point B which coincides with the
fifth millimetre division after the 4th centimetre. (1 small division
= 1 mm.)
Step IV: We join both points A and B by drawing a line
segment with a fine pointed pencil. The line segment AB is of 4.5 cm length.
Drawing a Line Segment:
Now, let us learn how to draw a line
segment of a given length.
Step I: Place the ruler on the paper. Then
mark two points P and Q against the marks 0 and 9 of the scale.
Step II: Keeping the scale evenly, move the
pencil from P to Q along the edge of the scale. The line segment PQ is of
length 9 cm.
Suppose you have to draw a line segment AB of length 7.7 cm.
Place the ruler on the paper.
Mark a point against the ‘0’ mark and another point against
7.7 cm mark.
Join the points by pressing the scale evenly and moving the
tip of the sharp pencil along the edge of the scale.
Remove the scale and name the points as A and B.
The line segment drawn is of 7.7 cm.
Questions and Answers on Constructing a Line Segment
I. Draw line segments of the following
lengths using the ruler:
(i) 9 cm
(ii) 3 cm
(iii) 10 cm
(iv) 5 cm
(v) 7 cm
II. Draw two lines segments PQ and QR of
length 4 cm each such that they meet at point Q. Measure the length of line segment
PR.
You might like these
A figure bounded by line segments is a regular figure. Figures bounded by curved lines are called irregular figures. The space enclosed by the line segments is called the area of a figure.
In worksheet on perimeter of a figure, all grade students can practice the questions on measurement of length. This exercise sheet on perimeter can be practiced by the students to get more ideas to learn to find the perimeter of a figure. 1. Find the perimeter of each of the
Worksheet on polygons are important to practice so that students can solve the polygon related questions easily in the 4th grade. A simple closed figure made up of line segments is called a polygon. A polygon having four sides are called quadrilaterals. A square is a
Worksheet on symmetrical shapes we will solve different types of questions. Fourth grade students can practice this geometry worksheet on symmetrical shapes to get the basic ideas on symmetrical
Symmetrical shapes are discussed here in this topic. Any object or shape which can be cut in two equal halves in such a way that both the parts are exactly the same is called symmetrical. The line which divides the shape is called the symmetry. So, if we place a mirror
In circle math the terms related to the circle are discussed here. A circle is such a closed curve whose every point is equidistant from a fixed point called its centre. The symbol of circle is O. We have learned to draw a circle, by tracing the outlines of objects like a
A simple closed curve or a polygon formed by three linesegments (sides) is called a triangle. The above shown shapes are triangles. The symbol of a triangle is ∆. A triangle is a polygon with three sides. In the given figure ABC is a triangle. AB, BC and CA are its sides.
Worksheet on closed curves and open curves questions are here for the students to practice simple shapes. 1. Draw an alphabet which forms a closed figure. 2. Draw a number which forms a closed figure which is not simple. 3. Draw a number which forms a simple closed figure
In simple closed curves the shapes are closed by linesegments or by a curved line. Triangle, quadrilateral, circle, etc., are examples of closed curves.
Representation of a fraction is discussed here. In a simple fraction, there is a horizontal line. Above this line we write a number which is called the numerator. Below this line we write another number which is called the denominator.
4th Grade Math Activities
From Constructing a Line Segment to HOME PAGE
Didn't find what you were looking for? Or want to know more information
about Math Only Math.
Use this Google Search to find what you need.
Share this page:
What’s this?


New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.