Question

find the perimeter of an equilateral triangle each of whose side is 8.4 CM

Answer 1

Perimeter of an Equilateral triangle is Thrice the sum of Any one Side...

So, The required perimeter is:
8.4×3=25.2cm


So, 25.2cm is Your required perimeter...

Hope it helps...
Regards,
Leukonov.

Answer 2

the peremetre of a equalateral triangle if 3(sides)
according to the question side given as 8.4cm
so,3(8.4)cm
=25.2cm

hope it helps u......