the width of a retangle is fixed @30 cm. what lengths will make the perimeter greater than 78 cm?
P = 2L + 2W
This question doesn't make much sense. Lengths are longer than widths. Yet 2*30 = 60 -- which is much more than half the perimeter.
This question doesn't make much sense. Lengths are longer than widths. Yet 2*30 = 60 -- which is much more than half the perimeter.