Question

two sides off scalene triangle measures 15 CM and 12 CM if the perimeter of the triangle is 40 CM find the length of the third side.​

Answer 1

Answer:

perimeter =40 cm

two sides are 15 cm and 12 cm

then the length of the third side is

{40-(15+12)} cm

=(40-27) cm

=13 cm

Answer 2

a=15cm

b=12cm

c=?

Perimeter of triangle=40cm

a+b+c=40cm

15cm+12cm+c=40cm

c+27cm=40cm

c=40cm-27cm

c=13

The third side is 13cm