Question

The surface area of a rectangular prism is 5600 mm2.

What is the surface area of this prism, measured in cm2?

A.
0.56 cm2

B.
56,000 cm2

C.
56 cm2

D.
560 cm2

Answer 1

To answer the problem above, use conversion factor and dimensional analysis. Every centimeters is composed of 10 millimeters. Hence, every cm^2 is composed of 100 mm^2. Solving the given,
 
                               5600 mm^2 x (1 cm^2/ 100 mm^2) = 56 cm^2.

Thus, the answer is 56 cm^2 which is letter C.