Answer:
Total surface area : 207cm²
Volume : 550.8³
Step-by-step explanation:
Surface area, first need to work out the area of each face.
A box is symmetrical so some faces will be the same.
Area = Base × Height
Top/bottom : 9 × 6 = 54cm²
side/side = 6 × 10.2 = 61.2cm²
Front/Back = 9 × 10.2 = 91.8cm²
Add then all together
54 + 61.2 + 91.8 = 207cm²
Volume = base × height × width
9 × 6 × 10.2 =550.8cm³
