Question

the perimeter of rectangle of lenght 42 cm and breadth 30cm is equal the perimeter to square what is the length of the side of square?​

Answer 1

Answer:

The length of the side of square is 36 cm

Step-by-step explanation:

Given : Length of rectangle (L) - 42 cm

           Breadth ( B) - 30 cm

            Perimeter of rectangle = Perimeter of a Square

Solution : Perimeter of rectangle = 2 * (L + B)

                                                      = 2 * (42 + 30)

                                                      = 2 * 72

                                                      = 144 cm

Given, Perimeter of square = perimeter of the rectangle

                                            = 144 cm

we know that perimeter of square = 4 * length of the side

∴ 4 * S = 144

        S = 144/4

           = 36 cm

Answer 2

Answer:

Given:-

the perimeter of rectangle of lenght 42 cm and breadth 30cm is equal the perimeter to square what is the length of the side of square

To find:-

the length of the side of square

Solution:-

Perimeter of rectangle =2(l+b)

2(42cm+30cm)

2(72cm)

=144cm

Perimeter of square=4×side

side=p/4

144/4

=36cm

Hence the length of the side of square is 36cm

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More about perimeter:-

Perimeter of rectangle=2(l+b)

Perimeter of square=4×side

Perimeter of Circle=2πr

Perimeter of Semicircle=2πr/2 +d

Perimeter of Rhombus=4×side

Perimeter of Triangle=Sum of all sides or 3× side {only for equilateral triangle}

Perimeter of parallelogram=2(base+side)