Question:

Which of the following figures have rotational symmetry of order more than 1:

CBSE Class VII

Updated On: Dec 6, 2023

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Solution and Explanation

(a) The given figure has its rotational symmetry as 4.

(b) The given figure has its rotational symmetry as 3.

(c) The given figure has its rotational symmetry as 1.
(d) The given figure has its rotational symmetry as 2.
rotational symmetry as 1 and 2
(e) The given figure has its rotational symmetry as 3.

(f) The given figure has its rotational symmetry as 4.

Hence, figures (a), (b), (d), (e), and (f) have rotational symmetry of order more than 1.

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So No	Base	Height	Area of parallelogram
a.	20 cm	-	246 \(cm^2\)
b.	-	15 cm	154.5 \(cm^2\)
c.	-	8.4 cm	48.72 \(cm^2\)
d.	15.6 cm	-	16.38 \(cm^2\)

Base	Height	Area of triangle
15 cm	-	87 \(cm^2\)
-	31.4 mm	1256 \(mm^2\)
22 cm	-	170.5 \(cm^2\)

So No	Base	Height	Area of parallelogram
a.	20 cm	-	246 \(cm^2\)
b.	-	15 cm	154.5 \(cm^2\)
c.	-	8.4 cm	48.72 \(cm^2\)
d.	15.6 cm	-	16.38 \(cm^2\)

Base	Height	Area of triangle
15 cm	-	87 \(cm^2\)
-	31.4 mm	1256 \(mm^2\)
22 cm	-	170.5 \(cm^2\)

Which of the following figures have rotational symmetry of order more than 1:

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