answersLogoWhite

0


Best Answer

There are 5 sets of 3 parallel diagonals (where one is a major diagonal and 2 of them span 2 vertices. Each set makes 3 pairs, so there are 5 * 3 = 15 pairs.

There are 5 sets of 4 parallel diagonals (where 2 of them span 1 vertex, and 2 of them span 3 vertices. Each set makes 6 pairs, so there are 5 * 6 = 30 pairs.

So that's 15 + 30 = 45 pairs.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many pairs of parallel diagonals in a decagon?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How many pairs of parallel lines does a decagon have?

A regular decagon will have 5 pairs of parallel sides, however, irregular decagons can have no parallel sides.


How many parallel lines does a decagon have?

A decagon has 10 sides. Any regular polygon with four or more sides will have pairs of sides that are parallel. A decagon will have 5 pairs of parallel sides.


How many parallel lines a decagone have?

A decagon has 10 sides. Any regular polygon with four or more sides will have pairs of sides that are parallel. A decagon will have 5 pairs of parallel sides.


How many diagonals in decagon?

There are 35 diagonals in a 10 sided decagon


How many perpendicular pairs does a decagon have?

10, A decagon has a maximum of five pairs of perpendicular lines, and a maximum of 5 parallel lines. however, this isn't in black and white it can have no pairs of line either perpendicular or parallel. know write the answer clearly


How many pairs of parallel sides does a decagon have?

It has 3 pairs of parallel sides By the way parallel sides are sides that never intersect (meet or touch together)


How many perpendicular sides does a decagon has?

10, A decagon has a maximum of five pairs of perpendicular lines, and a maximum of 5 parallel lines. however, this isn't in black and white it can have no pairs of line either perpendicular or parallel


How many diagonals does tetra-decagon have?

A tetra-decagon is a 14 sided polygon having 77 diagonals


How many diagonals are in a Decagon?

35.


How many diagonals in decagon have?

35


how many diagonals decagon have?

35


How many parallel sides does a decagon have?

A decagon can have 0, 2, 3, 4, 5, 6, 7, 8, 9 or 10parallel sides, depending on its layout.A decagon has 10 sides. Any regular polygon with four or more sides and even vertices will have pairs of sides that are parallel. A regular decagon will have 5 pairs of parallel sides.It is possible for a decagon to have 2 groups of 5 parallel sides. (For example, a block letter F).