Question

A student draws a regular polygon with 10 sides.He makes a design by using all the diagonals. How many fiagonals he need to draw also find each interior angle of the polygon ​

Answer 1

Answer:

Area of a Kite - Math Open Reference

If you know the length of two unequal sides and their included angle, this formula can be used, but requires a knowledge of trigonometry

Answer 2

Answer:

I can't understand so sorry