Question

two sides of a scalene triangle measure 15 cm and 12 CM if the perimeter of a triangle is 40 cm find the length of the third side
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Answer 1

Answer:

12+15+x=40

27+x=40x=40-27

=13cm

Answer 2

Answer:

13cm

Step-by-step explanation:

Let the third side be x.

Perimeter =sum of all sides

40=x+12+15

40=x+27

40-27=x

13=x