Question

The perimeter of a triangle is 40cm. Two of its sides measure 12.9cm and 14.6cm. Find the length of its third side

Answer 1

Answer:

Third side=12.5 cm

Step-by-step explanation:

let the third side be x

∴12.9+14.6+x=40

∴27.5+x=40

∴x=40-27.5

∴x=12.5 cm

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