The number of diagonals in a heptagon is

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Solution

The correct option is D
14

A heptagon is a closed two-dimensional shape with seven faces.
The number of diagonals in a polygon = $\frac{n (n - 3)}{2}$ ; n is the number of vertices.
Here $n = 7.$
Therefore, the number of diagonals in a heptagon = $\frac{7 (7 - 3)}{2}$ =14.

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Similar questions

What is the number of diagonals in a (i) heptagon (ii) octagon (iii) polygon of 12 sides ?

Marks	0-7	7-14	14-21	21-28	28-35	35-42	42-49
Number of students	3	4	7	11	0	16	9

Question 2
The number of diagonals in a septagon is
a) 21
b) 42
c) 7
d) 14

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