twenty-five
pentagon = 5 sides
then 5 x 5 = 25
5000
The answer depends on how many lines are shared by pentagons. There are at most 160 line segments.
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
15
Five, to remember this think of a pointy house.
10c5
2 sticks and 3 planks.
You would need 10 10cm sticks
There are infinitely many regular pentagons - a different one for each value for the length of its side.
The answer depends on how many lines are shared by pentagons. There are at most 160 line segments.
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
regular pentagons have no parrallel lines. irregular pentagons might but it depends. :))
5 straight lines are needed to construct a pentagon.
500
20 :)
There are 11 times 5 = 55 sides in 11 pentagons.
A pentagon has 5 sides. If you have 4 pentagons, you use: 4x5=20. Therefore, 4 seperate pentagons have 20 sides. This is not true if you have them combined however.
1 pentagon = 5 sides. 55 pentagons = 5*55 = 275 sides.