Question

A wire is in the shape of a square whose length is 80 cm. If the same wire is rebent in the shape of a rectangle of length 100 cm, find the breath of a rectangle.​

Answer 1

Step-by-step explanation:

the perimeter of squer is 4 into 80=320

now for rectangle 2(l+b)=320

length is 100 so

2(100+b)=320

200+b=320

b=320-200

b=120

so answer is 120

Answer 2

60

Step-by-step explanation:

length of square =80cm

perimeter of square =4×side

= 4×80cm

=320cm

perimeter of square = perimeter of rectangle

2 (l+b)= 320cm

2 (100cm+b)=320cm

200cm +2b = 320cm

2b = 320cm - 200cm

b = 120cm÷2

b=60cm

breadth= 60cm