Lesson Recap: In Game

Which of the following is NOT a polygon?

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What is a polygon with 10 sides?

• Triangle

• Nonagon

• Decagon

• Hexagon

It is a union of non-collinear segments, the sides, on a plane that meet at their endpoints, the vertices, so that each endpoint (vertex) is contained by exactly two segments (sides).

• Polygon

• Triangle

• Angle

• Circle

How many sides does a quadrilateral have?

• 3

• 4

• 5

• 6

What is a polygon that has congruent sides and congruent angles?

• Equilateral

• Equiangular

• Regular

• Irregular

Which of the following tools is NOT used in freehand drawing of polygons?

• Pencil

• Compass

• Protractor

• Ruler

Which of the following is NOT a polygon?

• Circle

• Rectangle

• Decagon

• Heptagon

What is the formula in finding the sum of all the interior angles of an n-sided polygon?

• (n)(180)

• (n-1)(180)

• (n-2)(180)

• (n-3)(180)

What is the sum of all the interior angles of a triangle?

• 720

• 540

• 360

• 180

What is the sum of all the interior angles of a quadrilateral?

• 180

• 360

• 540

• 720