The rectangular prism shown has a surface area of 162 m over 2 if the height of the prism is changed to 21 meters and the other dimensions remain the same what happens to the surface area and i need work to

The difference in height = 21 - 7 = 14 m

The difference in Surface Area = (6 + 3 + 6 + 3) x 14
The difference in Surface Area = 18 x 14
The difference in Surface Area = 252 m² 


The surface area will increase by 252m². (Answer B)