Question

Two sides of a triangle are 12 cm and 14 cm, the perimeter of the triangle is 36 cm. What is its third side?
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Answer 1

Answer:

Let length of third side=x

Perimeter = sum of all sides= (12 +14+x)cm

But perimeter=36

so this implies that 36=12+14+x

                                    36=26+X

                                    x=36-26

                                      x=10cm

Answer 2

Answer:

the third side equals 10

Step-by-step explanation:

let the third side be x

so 12 +14 +x =36  ( the property to find the perimeter of the triangle is to add up all the sides )

12+14+x =36

26 + x  =36

x = 36-26

x = 10

therefor the third side of the triangle is 10

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