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Mathsight Class 7 Solutions Chapter 11 Symmetry
Welcome to NCTB Solutions. Here with this post we are going to help 7th class students to solve MathSight Class 7 Mathematics Book, Chapter 11, Symmetry. Here students can easily get all the exercise questions solution for Chapter 11, Symmetry Exercise 11.1
Symmetry Exercise 11.1 Solution :
Question no – (1)
Solution :
Question no – (2)
Solution :
Reef angle, Square, Equilateral triangle.
Question no – (3)
Solution :
Parallelogram, Kite, Isosceles triangle have both line symmetry and rotational symmetry.
Question no – (4)
Solution :
Reef angle don’t have line of symmetry but have a rotational symmetry.
Question no – (5)
Solution :
Figure – (a)
= Order of rotational symmetry is 2
Figure – (b)
= Order of rotational symmetry is 4
Figure – (c)
= Order of rotational symmetry is 3
Figure – (d)
= Order of rotational symmetry is 5
Question no – (6)
Solution :
(a) the angle of rotational symmetry
= 360°/4
= 90°
(b) the angle of rotational symmetry
= 360°/2
= 180°
(c) the angle of rotational symmetry
= 360°/1
= 360°
(d) the angle of rotational symmetry
= 360°/3
= 120°
(e) the angle of rotational symmetry
= 360°/5
= 72°
Question no – (7)
Solution :
Question no – (8)
Solution :
(a) The figure is a Equilateral triangle.
(b) The figure is a Isosceles triangle.
(c) The figure is a Rhombus.
Question no – (9)
Solution :
(a) The statement is False.
(b) The statement is True.
(c) The statement is False.
(d) The statement is True.
Question no – (10)
Solution :
Horizontal symmetry = BOX
Vertical symmetry = WAX
Question no – (11)
Solution :
No, Because the clock are facing up wards, a clockwise turn would begin by rotating to the right.
Another side anti clockwise turn is in the opposite direction to the movement of the clock
Question no – (12)
Solution :
(a) clockwise.
(b) 360°
(c) No, number of turns of rotation should be decrease.
(d) 4
Previous Chapter Solution :
