Question

the semi perimeter of a triangle having the length of its side of 2 cm 15 cm and 9 cm is what ​

Answer 1

Formula of finding semi perimeter

= s1 + s2 + s3 /2

Here , s1 = 2cm, s2 = 15 cm , s3 = 9cm

So, SP = 2 + 15 + 9/2 = 26/2 = 13 cm( Answer)

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Answer 2

Answer:

answer is total perimeter /2

means sum of all sides /2

15+9+2/2

26/2

= 13 is the semi perimeter of the triangle .....