Question

The unequal sides of an isosceles triangle is 3 cm more than its one of the equal sides. If the perimeter of the
triangle is 18 cm, find the length of the three sides​

Answer 1

Answer:

5cm, 5cm, 8cm

Step-by-step explanation:

suppose equal side of isosceles triangle is xcm.

unequal side will be (x+3)cm.

perimeter=18 cm

then x+x+(x+3)=18

then 3x=15

then x=5

length of equal sides are 5 cn each and length of unequal side is 8 cm

Answer 2

Answer:

5,5,8

Step-by-step explanation:

let the two equal sides be x cm

" " " unequal side be x+3 cm

perimeter =18

By condition

x+x+x+3=18

=>3x+3=18

=>3x=18-3

=>x=15/3

=>x=5

equal sides are =5cm

x+3=8

unequal side is=8cm