Answer:
P = 36 in
Explanation:
A+B+C=P
So A would be 9,B would be 12, And C would be 15 add that all up and you get 36.
Perimeter = Sum of all sides
Sides of triangle are
Now , Calculating perimeter
Perimeter = 9 + 12 + 15
Perimeter = 36 in
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