What is the perimeter and area of. 4 in by 5 in

To find the perimeter use the formula s+s+s+s

(One s for each side)

Assuming the shape is a quadrilateral, each side should be added

So 4+4+5+5=18

The perimeter is 18in

To find the area do l*w

Once again, assuming the shape is a parallel (the formula changes depending on the shape)

4*5=20

The area of the shape is 20in^2