Coloring a Cube
Source: 2019 AMC8 #12
December 26, 2019
AMCAMC 8geometry3D geometry
Problem Statement
The faces of a cube are painted in six different colors: red (R), white (W), green (G), brown (B), aqua (A), and purple (P). Three views of the cube are shown below. What is the color of the face opposite the aqua face?[asy]
unitsize(2 cm);pair x, y, z, trans;
int i;x = dir(-5);
y = (0.6,0.5);
z = (0,1);
trans = (2,0);for (i = 0; i <= 2; ++i) {
draw(shift(i*trans)*((0,0)--x--(x + y)--(x + y + z)--(y + z)--z--cycle));
draw(shift(i*trans)*((x + z)--x));
draw(shift(i*trans)*((x + z)--(x + y + z)));
draw(shift(i*trans)*((x + z)--z));
}label(rotate(-3)*"", (x + z)/2);
label(rotate(-5)*slant(0.5)*"", ((x + z) + (y + z))/2);
label(rotate(35)*slant(0.5)*"", ((x + z) + (x + y))/2);label(rotate(-3)*"", (x + z)/2 + trans);
label(rotate(50)*slant(-1)*"", ((x + z) + (y + z))/2 + trans);
label(rotate(35)*slant(0.5)*"", ((x + z) + (x + y))/2 + trans);label(rotate(-3)*"", (x + z)/2 + 2*trans);
label(rotate(-5)*slant(0.5)*"", ((x + z) + (y + z))/2 + 2*trans);
label(rotate(-85)*slant(-1)*"", ((x + z) + (x + y))/2 + 2*trans);
[/asy]