Question 12304
Perimemter = Sum of the 3 sides
Let side B = s
Side A = 2Times B = 2xs = 2s
Side C is 1 more than A = 2s+1

Sum = s+2s+2s+1=76
5s+1=76
5s=75     Subtracting 1 on both sides
s=15
i.e B = 15cms
A= 2x15 = 30cms
C = 30+1 = 31cms