CK-12 Geometry - Second Edition

(Marvins-Underground-K-12) #1

1.6. Classifying Polygons http://www.ck12.org


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  1. Can you draw a triangle with a right angle and an obtuse angle? Why or why not?

  2. In an isosceles triangle, can the angles opposite the congruent sides be obtuse?
    9.ConstructionConstruct an equilateral triangle with sides of 3 cm. Start by drawing a horizontal segment of 3
    cm and measure this side with your compass from both endpoints.

  3. What must be true about the angles of your equilateral triangle from #9?


In problems 11-16, name each polygon in as much detail as possible.


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