NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes Ex 5.7

Ncert Solutions Chapter 5 Understanding Elementary Shapes Ex 5.7 Class 6 Maths Chapter 5 Exercise 5.7 Ncert Solutions Class 6 Maths Chapter 5 Exercise 5.7 Ncert Solutions For Class 6 Maths Chapter 5 Exercise 5.7 Ncert Class 6 Maths Chapter 5 Exercise 5.7 Class 6th Maths Exercise 5.7

NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes Ex 5.7

Question 1.
Say True or False :
(a) Each angle of a rectangle is a right angle.
(b) The opposite sides of a rectangle are equal in length.
(c) The diagonals of a square are perpendicular to one another.
(d) All the sides of a rhombus are of equal length.
(e) All the sides of a parallelogram are of equal length.
(f) The opposite sides of a trapezium are parallel.
Solution :
(a) True
(b) True
(c) True
(d) True
(e) False
(f) False.

Question 2.
Give reasons for the following :
(a) A square can be thought of as a special rectangle.
(b) A rectangle can be thought of as a special parallelogram.
(c) A square can be thought of as a special rhombus.
(d) Squares, rectangles, parallelograms are all quadrilaterals.
(e) Square is also a parallelogram.
Solution :
(a) A rectangle with all sides equal becomes a square.
(b) A parallelogram with each angle a right angle becomes a rectangle.
(c) A rhombus with each angle a right angle becomes a square.
(d) All these are four-sided polygons made of line segments.
(e) The opposite sides of a square are parallels, so it is a parallelogram.

Question 3.
A figure is said to be regular, if its sides are equal in length and angles are equal in measure. Can you identify the regular quadrilateral?
Solution :
A square is a regular quadrilateral.

Question 1

Measure the length of a line segment AB.

Solution

Use ruler and measure distance between A and B.

Suppose:

AB‾=5 cm\overline{AB} = 5\,cmAB=5cm

Answer:

$5cm$

Question 2

Compare line segments:

AB = 6 cm, CD = 4 cm

Solution

Compare lengths:

$6>4$

So AB is longer.

Answer:

$AB>CD$

Question 3

Identify: open or closed figure

Solution

If endpoints are not joined:

$\text{Open Figure}$

If endpoints are joined:

$\text{Closed Figure}$

Question 4

Which is longer: 3 cm or 7 cm line segment?

Solution

$7>3$

So 7 cm is longer.

Answer:

$7cm$