Question

Kanika had a piece of cloth 1 m long and 60 cm broad. She cut it into square shaped handkerchiefs ,each side measuring 20cm and put a lace on the boundary.how much lace is needed for the handkerchief?

Answer 1

The perimeter of the cloth before cutting= 2(100+60) = 320

The perimeter of each square handkerchief= 4(20)=80

Total handkerchiefs = 320/80=4

Each hanky needs 80cm of lace according to the perimeter of the hanky

Now for 4 hankys it'll be 4×80 = 320 cm = 3 m 20 cm