Question

if the perimeter of a triangle is 40cm and two sides are 10 cm and 14 cm,then then find it's third sides
A, 24 cm
B, 16 cm
C, 26cm
D, 64cm ​

Answer 1

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Step-by-step explanation:

Let x be the length of third side

The length of third side

10 + 14 + x = 40

24 + x = 40

x = 40 - 24

x = 16

Therefore,

The length of third side is 16 cm

Answer 2

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Let required side be x

Side a =10

Side b=14

Side c=x

Perimeter of triangle= side a + side b + side c

40=10+14+x

40-10-14=x

16=x

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