Which among the following has the most number of diagonals?
Triangle
Quadrilateral
Pentagon
Can't be determined
The pentagon has the most number of vertices among the options. Hence, it has the most number of diagonals.
Which among the following has the greatest number of diagonals?
Triangle, Quadrilateral, or Pentagon.
Among the following shapes of equal perimeter, which one has the largest area? how?
a A square b An equilateral triangle
c A circle d A regular pentagon