Question

b) Two sides of a triangle is 6 cm & 5 cm. The perimeter of the triangle is 20 cm. What is its
third side?​

Answer 1

Step-by-step explanation:

let the third side be x

perimeter of triangle = sum of all sides

20cm = 6cm+5cm+ x

20cm=11cm+x

20-11cm= x

x= 9

mark as brainliest..