Q12 of 805 Page 17

How many diagonals are there in a hexagon?

Number of diagonals in n sided polygon =


Therefore , n = 6


Diagonals = = 9

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10

In a square PQRS, if and cm then

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The bisectors of two adjacent angles of a parallelogram intersect at

 13

Each interior angle of a polygon is 135. How many sides does it have?

 14

For a convex polygon of n sides, we have:

i. Sum of all exterior angles = ...... .


ii. Sum of all interior angles = ...... .


iii. Number of diagonals = ...... .