Answer:
Step-by-step explanation:
Let's represent the various sides of the triangle as follows;
Longest side is A
Middle side is B
Shortest side is C
From the question,
A = 2C-3
B = (2C-3)/2 + 4.5 = C-1.5+4.5= C+3
Perimeter of a triangle = A+B+C
48In = 2C-3 + C+3 +C
Note that -3+3 =0
48 = 2C+C+C
48= 4C
Divide 48 by the coefficient of C
48/4 = C
C = 12In
Substitute the value of C into the expressions for A and B
A= 2C-3= (2×12)-3= 24-3=21In
B= C+3=12+3=15In
The sides of the triangle are 21in, 15In and 12In respectively
