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Earn +20 ptsQ: Do octagons have 10 sides
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How many sides do 1 decagon and 3 octagons have altogether?
An octagon has 8 sides. A decagon has 10. So 3*8+10 = 34 sides
How many sides do 3 decagons and 5 octagons have altogether?
A decagon has ten sides and an octagon has eight, so in 3 decagons and 5 octagons there are (3*10)+(5*8) = 30 + 40 = 70 sides altogether.
How many sides do 3 octagons have?
An octagon has eight sides, so three octagons altogether have 8 * 3 = 24 sides.
How many sides do 4 decagons 4 heptagons and 3 octagons have altogether?
A decagon has ten sides, a heptagon seven, and an octagon eight. So in 4 decagons, 4 heptagons, and 3 octagons there are 4*10 + 4*7 + 3*8 = 40 + 28 + 24 = 92 sides altogether.
How many sides do 4 heptagons and 5 octagons have altogether?
A heptagon has seven sides, and an octagon has eight sides. 4 heptagons and 5 octagons then have (4*7)+(5*8) = 68 sides altogether
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