Question

0.1 Find the perimeter of a square , if length of one side is 1.4 cm​

Answer 1

Answer:

5.6 cm

Step-by-step explanation:

Given,

• length of one side of the square is 1.4 cm

To find,

• the perimeter of the square

Solution,

   $\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\multiput(0,0)(4,0){2}{\line(0,1){4}}\multiput(0,0)(0,4){2}{\line(1,0){4}}\put(1.5,-0.6){\bf\large 1.4\ cm}\put(4.4,2){\bf\large 1.4\ cm}\end{picture}$

Side of the square, a = 1.4 cm

we know,

Perimeter of the square = 4 × side

    = 4 × a

    = 4 × 1.4 cm

    = 5.6 cm

Therefore, the perimeter of the square = 5.6 cm

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Square :

• Perimeter of the square = 4 × side
• Area of the square = side²

• Diagonal of the square = (side)√2

• The lengths of all four sides are equal.
• The four angles are equal.  [90° each]
• The opposite sides of a square are parallel.
• The lengths of diagonals of a square are equal.

• The two diagonals bisect each other at right angles.