Write down properties of Square, Rectangle and Triangle with diagram.

The answer is below

Step-by-step explanation:

Some of the Properties of a Triangle:

1.  All interior angles combined is 180°

2.  It has three sides, three angles, and three vertices

3.  The combined length of any of the two sides is higher than the third sides

Some of the Properties of a Square

1.   It has four sides and they are all equal

2.  Each of its angles is at 90°

3.  Its diagonals are equal

4.  The diagonals bisect at 90°

Some of the Properties of a Rectangle

1.  It has opposing sides that are parallel and equal to each other

2.  Each of the interior angles is at 90°

3.  The length of the diagonals is equal

4.  It is quadrilateral

i belive those are the ones that are under 90 degreese.