Question

Sheri built a 1/200 scale model of a dam. She used 0.1 cubic meter of plaster. What is the volume of the actual dam in cubic meters?
A.8,000 cubic meters
B. 80,000 cubic meters
C. 800,000 cubic meters
D. 8,000,000 cubic meters

Answer 1

The correct answer is C) 800,000 cubic meters.

The scale given is for the length, width or height of the model.  In order to find the scale for the volume, we would cube this scale, since volume is a cubic measurement:
(1/200)³ = 1/8,000,000

Since the volume of the model is 0.1, we multiply this by 8,000,000 to find the volume of the actual dam:
0.1(8000000) = 800,000