Question

The surface area of a rectangular prism is 42 cm2.

What is the surface area of this prism, measured in mm2?

A.
42,000 mm2

B.
0.42 mm2

C.
4200 mm2

D.
420 mm2

Answer 1

@DanJS

Answer 2

hello

Answer 3

start with this

Answer 4

we will use the idea that

10 mm = 1 cm

and use it to convert to mm^2

Answer 5

we will multiply by two copies of (10 mm/1 cm)