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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
7.3 Polygons and Triangles

Points to Remember:

Polygons:
  • A simple closed figure bound by line segments is called a polygon.
  • The line segments by which a polygon is bound are called its sides.
  • The sides of the polygon do not cross each other
  • Exactly two sides meet at every vertex.
  • Circle is not a polygon as this closed figure is not bounded by line segments.

Triangle:

  • A polygon with three sides is called a triangle.
  • A triangle is named by its vertices.
  • If D, E, and F are the vertices of a triangle, it is called triangle DEF.
  • The symbol for a triangle is and is read as "Triangle". "DEF" is read as "Triangle DEF".

Directions: Select if the following statements are true or false. Draw at least 5 examples of your own for polygons and name their properties.
Q 1: A triangle is a simple closed figure.
False
True

Q 2: If A, B, and C are three points, then the union of AB, BC and CA is triangle ABC.
True
False

Q 3: A triangle divides a plane in which it lies into three sets of points.
False
True

Q 4: All polygons are triangles, but all triangles are not polygons.
True
False

Q 5: All triangles are polygons, but all polygons are not triangles.
False
True

Q 6: The minimum number of points required to draw a triangle in a plane is three.
False
True

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Question 8: This question is available to subscribers only!


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