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# Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown.

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Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown.

Asymptote code below

[asy]
unitsize(1.5 cm);

pair[] A;

for(int i = 1; i <= 10; ++i) {
A[i] = dir(90 - 360/10*i);
draw(dir(90 - 360/10*i)--dir(90 - 360/10*(i + 1)));
}

draw(A--(A + A - A)--(A + A - A + A - A)--(A + A - A + A - A + A - A)--(A + A - A + A - A + A - A + A - A));
draw((A + A - A)--(A + A - A + A - A)--(A + A - A + A - A + A - A)--(A + A - A + A - A + A - A + A - A));

dot(A);
[/asy]

An equilateral triangle, a regular octagon, and a regular -gon, all with the same side length, also completely surround a point. Find .

Aug 28, 2017

#1
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Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown. An equilateral triangle, a regular octagon, and a regular -gon, all with the same side length, also completely surround a point. Find . regular 24-gon Aug 29, 2017

#1
+4

Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown. An equilateral triangle, a regular octagon, and a regular -gon, all with the same side length, also completely surround a point. Find . regular 24-gon heureka Aug 29, 2017