Answer:
A = 15cm, B = 20cm, C = 30cm
15cm : 20cm : 30cm
Explanation:
Ratio of the 3 sides is 3:4:6 representing side A,B,C respectively.
Total ratio = 3 + 4 + 6 = 13
Since sum (perimeter) of all side is 65cm
Side A = 3/13 x 65 = 15cm
Side B = 4/13 x 65 = 20cm
Side C = 6/13 x 65 = 30cm