Question

Find the area of a triangle whoose 2 sides are 18 cm and 10 cm amd the perimeter 42 cm

Answer 1

let third Side bê x

perimetre of triangle =sum of all the sides

42=18+10+x

x+28=42

x=42-28

x=14

Answer 2

Answer:

Let third side be x

perimeter of triangle =sum of all the sides

42=18+10+x

x+28=42

x=42-28

x=14

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