Classify Triangles, Quadrilaterals, Polygons

A polygon is:

• An open shape with the same sides and angles

• Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).

• A 3d shape that is not joined by lines.

Which of the following organizers shows the progression of quadrilaterals from least specific to most specific in regards to their attributes and properties?

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What title can NOT be added to the graphic organizer?

• Octagons

• Decagons

• Quadrilaterals

• Circles

An equilateral triangle can also be classified as an -

• parallelogram

• isosceles

• scalene

• trapezoid

Which BEST describes this picture?

• quadrilateral

• parallelogram

• trapezoid

• rectangle

What kind of triangle has no congruent sides?

• equilateral

• isosceles

• horizontal

• scalene

• scalene, acute

• scalene, obtuse

• isosceles, acute

• isosceles, obtuse

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• rectangle

• rhombus

• square

• trapezoid

• trapezoid

• square

• rhombus

• rectangle