Q13 of 78 Page 23

A polygon has prime number of sides. Its number of sides is equal to the sum of the two least consecutive primes. The number of diagonals of the polygon is

2 least consecutive prime numbers are 2 and 3.

⇒ No. of sides = 5


⇒


⇒ d = 5


B.5 is correct

More from this chapter

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11

If the sum of two angles is greater than 180°, then which of the following is not possible for the two angles?

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If the sum of two angles is equal to an obtuse angle, then which of the following is not possible?

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In Fig. 2.11, AB = BC and AD = BD = DC.

The number of isosceles triangles in the figure is


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in Fig. 2.12,

∠BAC = 90° and AD ⊥ BC.


The number of right triangles in the figure is