Verified Answer :

3,4,5 units
3+4+5=12

the perimiter can be split into 12 units
48=12 units
divide by 12
4=1 units


3<4<5
longest side is 5 units

4=1unit
times both sides by 5
20=5 units

answer is D. 20

Answer:

D) 20

Step-by-step explanation:

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