18) ► each day peter walks past a rectangular athletic field on his way home
from school. if the field is being used, peter walks along two sides of the field.
if the field is not being used, he cuts across from corner to corner. if
60 steps along one edge of the field and 80 steps along the other edge, how
many steps can peter save by walking from corner to corner?

this needs to be shown work requirement on my college elementary math class i don’t know where to start! i need it done by