Question

Find the perimeter of a triangle whose sides are 3 cm, 4 cm and 5 cm?​

Answer 1

Answer:

Perimeter is 12cm

Step-by-step explanation:

Let the sides be AB, BC, AC.

AB = 3cm

BC = 4cm

AC = 5cm

Perimeter of triangle ABC = AB + BC + AC

= 3 + 4 + 5

= 12cm

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Answer 2

Answer:

12cm

Step-by-step explanation:

perimeter of a triangle =a+b+c. 3+4+5=12cm