Find the semi perimeter of a triangle with side 9cm 12cm and 30cm
Answers
Answered by
12
Answer:
25.5
Step-by-step explanation:
(9+12+30)/2=(12+39)/2= 51/2=25.5
Answered by
14
Answer:
s = a+b+c / 2
= 9 + 12 + 30 / 2
= 51/2
= 25.5cm
Step-by-step explanation:
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