Question

find the diagonal of
Polygon of 12 sides
.​

Answer 1

Answer:

$\huge{\red{\boxed{\boxed{\bigstar{\Solution{\bigstar}}}}}}.$

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

$where \: n \: is \: number \: of \: sides$

$n = 12$

$\frac{12(12 - 3)}{2}$

$\frac{12(9)}{2}$

$\frac{108}{2}$

$54$