Saturday 16 December 2017

GEOMETRY 1


The interior of a regular polygon is 1700. Find the number of sides

Solution

i = (n-2)1800
          n

But  i=1700.

1700 = (n-2)1800
                 n

170 x n = (n-2)1800 x n  multiplying by n both sides.
                  n

170n = (n-2)1800   

170n = 180n-3600

3600  = 180n- 170n

3600  = 10n

n = 36 after dividing by 10 both sides.    

Hence number of sides = 36            


TRY THIS……………………….



The interior of a regular polygon is 1500. Find the number of sides



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