Classifying Polygons, Triangles, & Quadrilaterals

Polygon - a(n) ______ plane figure formed by three or more line segments

• open

• closed

• cross

• intersecting

Click on all of the possible names you can give this triangle.

• equilateral

• isosceles

• acute

• obtuse

Identify the polygon

• octagon

• heptagon

• nonagon

• decagon

How many sides does a quadrilateral have?

• 3

• 4

• 5

• 6

Click on all of the possible names you can give this polygon.

• quadrilateral

• parallelogram

• rectangle

• rhombus

• square

To be a regular polygon, you must have congruent ________ and angles

Classify the triangle correctly.

• isosceles obtuse

• scalene right

• isosceles right

• scalene acute

Pentagon - a polygon with ___ sides, angles, and vertices.

Click on all the possible names you can give this polygon.

• parallelogram

• triangle

• quadrilateral

• trapezoid

Why can a square also be called a rhombus?

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