Question

How many lines of symmetry does a rhombus have$?$
(In this case we mean a rhombus that is not a square)
A: $1$
B: $2$
C: $4$
D: None

Answer 1

Hint: In geometry, Rhombus is a quadrilateral structure whose four sides are having the same length. It can also be called as equilateral quadrilateral, since equilateral means it is having equal or same length.

Complete step-by-step answer:
Rhombus is nothing but the quadrilateral structure having all the sides are equal in length. Rhombus is often called a diamond because of its shape.
Rhombus can form shapes like parallelogram, square, kite and many. Some shapes are shown as below.

Every rhombus will be having two diagonal lines connecting pairs of opposite vertices, and two pairs of parallel sides.
In the below figure:
$ABCD$is a rhombus having $AB$ , $BD$ , $DC$ and $AC$as its four sides. Here $AD$ and $BC$ are its diagonals.

In the above diagram we can notice that line $AB$ is parallel to $DC$ and line $AC$ is parallel to $BD$ .
(Parallel lines are nothing but the straight lines which do not intersect at any point).
Symmetry refers to the line which makes or cuts the geometrical figure into two identical halves and each half is a mirror image of the other.
Referring to the above diagram we see that the line $BC$ divides the rhombus into two equal parts that are $ABC$ and $BDC$ which are identical. Not only the line $BC$ divides the rhombus into two equal parts but also the line $AD$ divides the rhombus into two identical equal parts.
Hence, we can say that rhombus is having two lines of symmetry.

Note: When we take an example of square then we will be having four lines of symmetry. A kite is having only 1 line of symmetry. Every geometrical figure will be having their own number of symmetries according to its shapes.