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Geometry · Chapter 6 · Lesson 6.1 · Printable PDF

Angle Sums of Polygons Worksheet with Answer Key

6 problems on angle sums of polygons: finding the number of sides, diagonals, a heptagon sign, cutting a hexagon, a general proof from a side point, and angle cases. 2 pages, with a worked answer key.

6 problems2 pagesanswer key
Printable Angle sums of polygons worksheet with answer key - Geometry (Page 1 PDF preview)
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What's on the worksheet

  1. Find the fewest sides a polygon needs so its angles add to more than 5000 degrees.
  2. Find the number of sides when diagonals are three times the sides.
  3. Find the missing angles of Mateo's arrow-shaped sign.
  4. Decide what polygon the other piece of a cut cake is and what its angles add to.
  5. Show the angle sum formula using a point on a side joined to the vertices.
  6. Decide whether a convex pentagon can have four right angles.

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The free lesson teaches it with worked examples and practice problems.

Angle sums of polygons: the lesson ›

More Chapter 6 worksheets: Quadrilaterals and polygons