Question

the semi-perimeter (s) of ABC whose side are 10 cm, 8cm, and 12cm is -​

Answer 1

Step-by-step explanation:

10+8+12/2

30/2

15

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Answer 2

Answer:

for the sides of a triangle,

let a=10cm

,b= 8cm

and,c = 12cm

semi perimeter of tiangle ABC=(a+b+c)/2

= (10+8+12)cm/2

= 30cm/2=15cm