Question

find the semi perimeter of a triangle having the length of its sides as 20 cm ,15 cm and 9 cm​

Answer 1

Answer:

Semi perimeter=a+b+c/2, where a,b and c are sides

So, your answer will be =(20+15+9)/2

=44/2=22.

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Answer 2

Answer:

semi perimeter of triangle = a+b+c/2, where a, b and c are sides, a= 20, b=15, c=9 . so, your answer is (20+15+9)/2 = 22...