Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2016-part-05 — 184 problems (EN–VI) Question 114

Math Olympiad Vault · MathNet 2016-part-05 — 184 problems (EN–VI)

Question 114

A cube with edge length $a$ is cut into 8 small congruent cubes. Denote the surface area of one such small cube by $P$. What is $P$?

(A) $\frac{a^{2}}{2}$
(B) $\frac{3 a^{2}}{4}$
(C) $\frac{a^{2}}{8}$
(D) $\frac{3 a^{2}}{2}$
(E) $a^{8}$