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Earn +20 ptsQ: How many sides do 2 nonagons and 2 decagons have in all?
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How many sides do 2 pentagons 3 nonagons and 2 hexagons have in all?
They have 49 sides.
How many sides do 2 pentagons and 5 decagons have in all?
There are (2*5) plus (5*10) = 60 sides
How many degrees are in a irregular decagon?
all decagons have 1440 degrees
How many faces have pairs of parallel edges in a decagonal based prism?
If the prism is based on regular decagons and it is a right prism, all 12 faces.
How many congruent sides does a polygon have?
It all depends on what kind of polygon it is. It may have no congruent sides or all congruent sides.
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