The length of a rectangle is being decreased at the constant rate of 4cm/s whilst the breadth is increased in such a way that the figure remains a rectangle of fixed area 60 cm². What is the rate of change of the
1) breadth
2) perimeter,
When the length is 12cm?
Thanks for help!
1) breadth
2) perimeter,
When the length is 12cm?
Thanks for help!