Question

The scalene triangle has 40 cm as its perimeter and whose two sides are 13 cm and 15 cm, find

the third side​

Answer 1

Answer:

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Perimeter= Sum of all sides

40= 13+15+ X

40= 28+X

40-28= X

12cm= x

Answer 2

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=> Perimeter = Sum of all side

=> 40 = 13 + 15 + x

=> 40 = 28+ x

=> 40-28 = x

=> 12cm

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