Find the number of sides of each of the two polygons if the total number of sides of the polygons is 15, and the sum of the number of diagonals is

36.

1
Find the number of sides of each of the two polygons if the total number of sides of the polygons is 15, and the sum of the number of diagonals is

36.

1
let n be the number of side per polygon

formula :

by trial and error

let n = 9

let n = 6

D = 9 +27

D = 36

it is a method where you will have to try different value of a variable to satisfy a given situation.