Question

how may diagonals does each of the following have?
(A) a convex quadrilateral
(B) a regular hexagon
(C) a triangle

Answer 1

Hello dear..
(A).. a convex or concave Quadrilateral has 2 diagonals ...
(B)...a regular hexagon has 18 diagonals because a regular hexagon has 6 regular sides and every vertex has 3 diagonals so a regular hexagon has 18 diagonals...
(C)... a triangle is the exepection in the polygon which don't have h diagonals because A diagonal is a line seg. join two non adaject vertical of polygon which is not possible in the case of triangle....
Hope this will help u....