Set it up as proportion. Corresponding sides matter. I am going to go from the one on the left to the one on the right. 
. Cross multiply to get 96=12x-12. 108 = 12x and x = 9
Look at the attachment please!
1 answer:
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Answer:
3 in
Step-by-step explanation:
Sum of all sides of ∆ = perimeter
Given that it has a perimeter of 13 in, and the following sides: (x - 5) in, x/2 in, and 6 in, therefore:
Solve to find the value of x
Multiply both sides by 2
Subtract 2 from both sides
Divide both sides by 3
The shortest side = (x - 5) in
Plug in the value of x
= (8 - 5) in
= 3 in