a rectangular field is measured 290m by 219m.how long it will take for a girl to go to 2 times round the field.if she walks at the rate of 1.5m per sec.

Answer 1

calculate the perimeter

=(290+219+290+219)m

i.e. the distance around the rectangle.

distance travelled is twice this so
=2x(290+219+290+219)m

time taken is then distance/speed