The number of positions in which an object looks exactly the same as the original during a full turn is called the ___.

angle of rotational symmetry

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order of rotational symmetry

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order of line symmetry

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angle of rotational symmetry

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Solution

The correct option is B order of rotational symmetry
The number of positions in which an object looks exactly the same as the original during a full turn is called the order of rotational symmetry.

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Similar questions

Q. Order of rotational symmetry is the number of times an object looks exactly the same in a complete turn of _________

An object looks exactly similar to the original object if it is rotated by some angle. This type of symmetry is called ______ symmetry.

Q. Some english alphabets have fascinating symmetrical structures. From the following table, find the number of alphabets which have both the lines symmetry and rotational symmetry more than 1

Alphabets	Line symmetry	Number of lines symmetry	Rotational symmetry	Order of rotational symmetry
$Z$	No	$0$	Yes	$2$
$S$	No	$0$	Yes	$2$
$H$	Yes	$2$	Yes	$2$
$O$	Yes	$2$	Yes	$2$
$I$	Yes	$2$	Yes	$2$
$N$	No	$0$	Yes	$2$
$C$	Yes	$1$	No	$1$

(a) After rotating through an angle of 120 degrees through its centre of symmetry the figure looks exactly the same as its original. At what other angles will it happen for the figure? Describe with an example.

(b) What is the order of rotational symmetry?

(c) What is the order of rotational symmetry of a semi-circle?
[4 MARKS]

If a figure is rotated by 180^o the figure looks exactly same then it has rotational symmetry of order ______ .

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The number of positions in which an object looks exactly the same as the original during a full turn is called the ___.

The correct option is B order of rotational symmetryThe number of positions in which an object looks exactly the same as the original during a full turn is called the order of rotational symmetry.

The correct option is B order of rotational symmetry
The number of positions in which an object looks exactly the same as the original during a full turn is called the order of rotational symmetry.