twenty-five
pentagon = 5 sides
then 5 x 5 = 25
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
Five, to remember this think of a pointy house.
Three pentagons have a total of 15 sides. Each pentagon has 5 sides, so when you have 3 pentagons, you would multiply 5 sides by 3 pentagons to get 15 sides in total.
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.
regular pentagons have no parrallel lines. irregular pentagons might but it depends. :))
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
20 :)
500
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.
There are 11 times 5 = 55 sides in 11 pentagons.
1 pentagon = 5 sides. 55 pentagons = 5*55 = 275 sides.
Pentagons (including convex pentagons) have five sides. (The prefix penta- is greek for 5)