Question

i have to find the suface area of rectangular prisms here is the problem 9*2.1 2.1*4.4 4.4*9 i got 135.48 is that right

Answer 1

9*2.1, 2.1*4.4, 4.4*9

Assuming that the above are the dimensions of each side, then for the six sides:

2(9*2.1) + 2(2.1*4.4) + 2(4.4*9) = Surface Area

Is that what you did?