ESTIMATION Alicia estimates that the surface area of a rectangular prism with a length of 11 meters, a width of 5.6 meters, and a height of 7.2 meters is about 334 cubic meters. Is her estimate reasonable? Explain your reasoning.

Answer 1

the estimate is low

rounding each of the three dimensions to one digit gives ... 10 * 6 * 7 = 420

multiplying the exact figures yields ... 11 * 5.6 * 7.2 = 443.52