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Q: Does a regular octagon have perpendicular diagonals?

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no

How many pairs of perpendicular sides does this figure have?

The diagonals of a rectangle are never perpendicular but the diagonals of a square are perpendicular

There are 20 diagonals

No, they do not.

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8 diagonals

4 diagonals

no

yes

It has 20 diagonals and is made up by 6 triangles

A square or other rhombus (= parallelogram with 4 equal sides, whether or not they're at right angles).Also, any other regular 4n-gon -- i.e., regular polygon whose number of sides is a multiple of 4 -- will have pairs of perpendicular diagonals. So a regular octagon has two such pairs.

A square or other rhombus (= parallelogram with 4 equal sides, whether or not they're at right angles).Also, any other regular 4n-gon -- i.e., regular polygon whose number of sides is a multiple of 4 -- will have pairs of perpendicular diagonals. So a regular octagon has two such pairs.

Yes 1 pair

An octagon has 16 diagonals.

You might be able to construct an irregular octagon that way, but for a regular one, no.

How many pairs of perpendicular sides does this figure have?

noNo, the diagonals of a rhombus are perpendicular to each other.Unless the rhombus is regular (and called a square) the diagonals are of different lengths.

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