Question

the length of the three sides of a tringle are in GP .The perimeter is 26 cm. The shortest side is 2cm Find the length of the other two sides

Answer 1

let sides are a ,b ,c

let b = 2cm

a + b + c = 26cm

a + c = 24 cm

b^2 = ac

4 = ac

4/c + c = 24

c^2 -24c + 4 = 0

solve and find c then get a

a = 4/c