Question

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If two sides of triangle are 14 cm and 16 cm and perimeter is 40 cm then third side will be
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Answer 1

Answer:

perimeter of triangle = Sum of the sides

let denote the sides with a,b and c

a+b+c=40cm

14+16+c=40cm

30+c=40cm

c=10cm

so , third side of triangle will be 10 cm

Step-by-step explanation:

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Answer 2

Answer:

let the unknown side be x

perimeter of = sum of its three sides

40 = 14 + 16 + x

40 = 30 + x

40 -30 = x

10cm = x