Question

semi perimeter of a triangle having the length of its sides 18cm 17 cm​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Let a=20cm,b=15cm,c=9cm

And semi-perimeter =S

Now, S=  

2

a+b+c

​  

=  

2

20+15+9

​  

=  

2

44

​  

=22cm

∴  Semi-perimeter of triangle is 22cm