Question

The length of two side of a triangle are 12 CM and 14cm the perimeter of triangle is 36cm what is the length of it's third side

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Answer 1

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Length of one side (a) = 12cm

Length of second side (b) = 14cm

Length of third side (c) = ?

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Perimeter of ∆ = 36cm

=> a + b + c = 36cm

12 + 14 + c = 36

26 + c = 36

c = 10cm

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Thus, length of the third side of the given ∆ is 10cm.

Answer 2

Answer:

let the third side be x

then, we know that perimeter of a triangle

in sum of its side

12cm +14cm±x =36cn

26cm+x=36cm

x=10cm

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