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.
420 mm2

C.
4200 mm2

D.
0.42 mm2

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.
420 mm2
 
 C.
4200 mm2
 
 D.
0.42 mm2

anonymous · Answer

King
Henry
Doesn't
Usually
Die
From
Drinking
Chocolate
Milk

Kilometer 
Hectometer
Dekameter
Unit - the one you started with
Decimeter
Centimeter
Millimeter

Either you move up or down depending on where you are coming from. 
Since you are going from centimeters to millimeters you move one decimal place to the left. (i'm pretty sure) So the answer would be B. 420 mm^2