Question

the perimeter of atriangle is 26.6 cm . two of it sides are 7.1 cm and 9cm find the length of the third side of the triangle

Answer 1

perimeter of triangle = sum of all sides

here ,  26.6 = 7.1 + 9 + third side

26.6 = 16.1 + third side

26.6 - 16.1 =third side


10.5 = length of third side 


 i hope this will help you


-by ABHAY