Determine (a) the volume and (b) the surface area of the three-dimensional figure. When appropriate, use the a key on your calculator. 7 cm 9 cm 12 cm a) The volume is 756 cm3. (Simplify your answer....

1^^ need the surface area

Extracted text: Determine (a) the volume and (b) the surface area of the three-dimensional figure. When appropriate, use the a key on your calculator. 7 cm 9 cm 12 cm a) The volume is 756 cm3. (Simplify your answer. Type an integer or a decimal.) b) The surface area is (Simplify your answer. Type an integer or a decimal.)