Find the surface area of the rectangle prism. 3cm 9cm and 6cm

198 cm²

Step-by-step explanation:

We are given the dimensions of a rectangular prism;

3cm 9cm and 6cm

We are required to determine its surface area;

We need to know that;

Surface area of a rectangular prism is given by;

A = 2 (WL+HL+WH)

Where L, W and H are length, width and height respectively;

Assuming;

Width is 3 cm

Length is 9 cm, and

Height is 6 cm

Then;

Area = 2 ((3*9) + (6*9) + (3*6))

= 2 (99)

= 198 cm²

Therefore, the area of the rectangular prism is 198 cm²