The number of diagonals, $k$ that can be drawn from one vertex of an $x$ sided rectangle to all other vertices is equal to the number of sides of the rectangle minus $4$ . Frame the formula for the given statement.

k = x - 4

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x = 4 - k

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k + x = 4

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4 - x = k

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Solution

The correct option is A $k = x - 4$
Given that the number of diagonals k is equal to the number of vertices x minus 4, then the formula is
$k = x - 4$

So, option A is correct.

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