Question

(ii) The perimeter of a triangle is 40 cm. Two of its sides measure 12.9cm and 14.6.Find the peetimeter of the triangle​

Answer 1

Answer:

the perimeter of the triangle is 40 com

Answer 2

Answer:

first you should add both side 12.9 + 14.6 =27.4

the subtract it with perimeter 40-27.4 = 13.4

so 12.9+14.6+13.4=40cm

hope it helps you

the 13.4 is third side of triangle OK!