Question

two sides of a scalene triangle measure 15 cm and 12 cm . if the primetre of the triangle is 40 cm , find the length of the third side

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Answer 1

Answer:

c= 13 cm

Step-by-step explanation:

two sides of a scalene triangle measure 15 cm and 12 cm

perimetre of the triangle is 40 cm

let a= 15cm , b= 12cm c = ?

perimeter = a+b+c

=> 40 = 15 + 12 + c   => 40 = 27 +c => c= 13 cm