Answer:
The length of side b will be 2 m.
Step-by-step explanation:
The given net is the net of a rectangular pyramid.
The net of the pyramid has a rectangular base.
The dimensions of the base are width =b and length=c.
The solid also has a rectangular base with length=5 m and width =2m.
Since the net is used to form the solid , b=5m, c=2m , and a=7m.
The correct choice is :
The length of side b will be 2 m.
