Texas Math Models

Try “number line” or “4.5D”

Count the straight sides

the name comes from the count

G3

Count the straight sides. That number is what names the figure.circleno straight sidestriangle3 sidesquadrilateral4 sidespentagon5 sideshexagon6 sidesa circle has no straight sides, so it is not a polygonthe count names it, however it is turnedany four-sided polygon is a quadrilateral: say that, not “diamond” or “box”

How this one works

How

count the straight sides. None is a circle, 3 a triangle, 4 a quadrilateral.

Best when

always start here, before any other question.

The same problem, other ways