What is the order of rotational symmetry for a rhombus?

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 A rhombus has order of rotational symmetry of 2

Step-by-step explanation:

We know that a geometric figure has rotational symmetry if it maps onto itself under rotation about an angle at its center.

The order of rotational symmetry is the number of times the geometric figure maps onto itself during a rotation of 360°.

[ At 180° and 360° it maps onto itself]

A  rhombus maps onto itself  two times during a rotation of 360°

Hence, A rhombus has order of rotational symmetry of 2.

answer: what do you mean

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column