Posted by t on .
a rectangle field is 130 m by 420 m. a rectangle barn 19 m is built in the field. how area is left ove?

geometry 
PsyDAG,
Is the barn 19 m^2? If not, we need the other dimension of the barn to solve the problem.
(130*420)  19 = ?
or
(130*420)  19x = ?