Question

Swati runs around a square park of side 80m. Naina runs around a rectangular park with length 70m and breadth 55m.

Who covers less distance?​

Answer 1

Answer:

$\rm{in \: case \: of \: swati - }$

$\rm{side \: of \: square = 80m}$

$\rm{perimeter \: of \: square = 4 \times side}$

$\rm{ = 4 \times 80m}$

$\rm{ = 320m}$

$\rm{in \: case \: of \: naina - }$

$\rm{length \: of \: rectangle =70m }$

$\rm{breadth \: of \: rectangle = 55m}$

$\rm{perimeter \: of \: rectangle = 2(l + b)}$

$\rm{ = 2(70m + 55m)}$

$\rm{ =2(125m) }$

$\rm{ = 250m}$

$320 > 250$

$\rm{therefore \: naina \: covered \: less \: distance}$