The length of side A is 8.8 cm and length of side B is 4.4 cm and length of side C is 12.8 cm
<em><u>Solution:</u></em>
Let the length of side A be "a"
Let the length of side B be "b"
Let the length of side C be "c"
<em><u>Side A of a triangle is twice the length of side B</u></em>
a = 2b
<em><u>Side C is 4 cm longer then side A</u></em>
c = 4 + a ------------- eqn 2
The perimeter is 26 cm
<em><u>The perimeter of triangle is given by formula:</u></em>
Perimeter = a + b + c
Where, "a", "b", "c" are the length of sides of triangle
Therefore,
26 = a + b + c
<em><u>Substitute eqn 1 and eqn 2 in above</u></em>
<em><u>Substitute a = 8.8 in eqn 1</u></em>
b = 4.4
<em><u>Substitute a = 8.8 in eqn 3</u></em>
c = 4 + 8.8
c = 12.8
Thus length of side A is 8.8 cm and length of side B is 4.4 cm and length of side C is 12.8 cm