No, similar pentagons (or any polygon for that matter) must have corresponding congruent angles and all sides must be proportional to its corresponding sides. For example, if a square with a triangle on it is a pentagon, then a regular pentagon would not be similar to it (because corresponding angles are not congruent).
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a pentagon has 5 sides, a regular pentagon has 5 EQUAL sides A Regular Pentagon is a shape that has equal angles and side lengths. It is type of Pentagon. Pentagons do not have to have equal sides and lengths.
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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. :))
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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.
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.
1 pentagon = 5 sides. 55 pentagons = 5*55 = 275 sides.
Pentagons (including convex pentagons) have five sides. (The prefix penta- is greek for 5)
The US "Pentagon" building is an example of their use.