The length of a rectangular prism is 4√3 units. The height is 3√6 units. If the volume is irrational, which could be the measure
of the width of the rectangular prism?
Answer choices:
A. 2√50
B. 4√12
C. 5√8
D. 7√18 PLEASE EXPLAIN ALL STEPS
1 answer:
Volume = length * height * width
= 4 qrt3 + 3 sqrt6 * w
= 12 sqrt18 w
let w = 2 sqrt50 then volume = 2*12 * sqrt 18*50 = 24*30 so this is rational
let w = 4 sqt 12 the v = 48 sqrt12 * sqrt 18 = 48 sqrt30 which is irrational
C and D are rational
answer is B
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