Two properties of a square that are not properties of every rhombus are :

1.) Angles between two sides is 90° in square , not necessarily in rhombus.

2.) Diagonals in a square are of equal length , not so in a rhombus .

1.) Angles between two sides is 90° in square , not necessarily in rhombus.

2.) Diagonals in a square are of equal length , not so in a rhombus .

Step-by-step explanation:

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30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared