Question

Find out the number of diagonals in a polygon having 10 sides

Answer 1

Answer:

Use formulae n(n-3)/2 where n is the number of sides

=10(10-3)/2

=70/2

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=35 diagonals

Answer 2

$number \: of \: diagonals \: in \: a \: polygon = \frac{n(n - 3)}{2}$

where n : number of sides of polygon

$\frac{10(7)}{2} = 35 \: digonals$

This is required solution.

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