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How many diagonals does each of the foll...

How many diagonals does each of the following have?
(i) A convex quadrilateral
(ii) A regular hexagon
(iii)   A triangle

Text Solution

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Diagram
(i) A convex quadrilateral has two diagonals.
(ii) A regular hexagon has nine diagonals.
(iii) A triangle has zero diagonal.
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