Answer:
168 square inches
Explanation:
Assuming these are the dimensions of a rectangular prism, then the surface area is given by
TSA=2(lw+lh+wh)
We substitute the dimensions into the formula to obtain:
TSA=2(2*9+2*6+9*6)
We simplify to get:
TSA=2(18+12+54)
TSA=2(84)
TSA=168 square inches