Question

. If the perimeter of a triangle 42 cm , then find the value of “S ”.​

Answer 1

Answer:

$\\ s = 14 \\ because \: the \: traingle \: have \: 3sides \\ i \: hope \: you \: anderstand \: \\ mark \: the \: brainliest$

Answer 2

Answer:

answer is 21 cm

Step-by-step explanation:

s=semiperimeter=perimeter/2=42/2=21 cm.