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What is the sum of the measures of the a...

What is the sum of the measures of the angles of a convex quadrilateral? Will this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try!)

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MBD-UNDERSTANDING QUADRILATERALS-EXAMPLE
  1. How many diagonals does each of the following have? A convex quadrilat...

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  2. How many diagonals does each of the following have? A regular hexagon

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  3. What is the sum of the measures of the angles of a convex quadrilatera...

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  4. Examine the table : What can you say about the angle sum of a Conve...

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  5. What is a regular polygon? State the name of a regular polygon of 3 si...

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  6. What is a regular polygon? State the name of a regular polygon of 4 si...

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  7. What is a regular polygon? State the name of a regular polygon of 6 si...

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  8. Find the angle measure x in the following figures.

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  9. Find the angle measure x in the following figures.

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  10. Find the angle measure x in the following figures.

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  11. Find the angle measure x in the following figures.

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  12. Find x+y+z

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  13. Find x+y+z

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  14. Match the followiong : ( Caution ! A figure may match to more than one...

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  15. How many diagonals does each of the following have ? A concave quadril...

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  16. How many diagonals does each of the following have ? A square

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  17. How many diagonals does each of the following have ? A rectangle.

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  18. What is the sum of the angles of a rectangle ?

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  19. What can you say about the angle sum of a convex polygon with number ...

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  20. What can you say about the sum of angles of a convex polygon with numb...

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