Question

How many diagonals does each of the following have?
(a) A convex quadrilateral
(b) A regular hexagon
(c) A triangle​

Answer 1

Answer:

the formula of diagnol is

n(n-3)/2

a) 2

b) 9

c) 0

Answer 2

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a) A convex quadrilateral: 2.

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b) A regular hexagon: 9.

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c) A triangle: 0