Question

if s-a=12cm,s-b=9cm,s c=4cm,then s= ?
please Answer ​

Answer 1

Step-by-step explanation:

s-a =12,s-b= 9, s-c=4

we know that

let s be x

• 3s -(a+b+c)= 12+9+4
• 3s-(a+b+c)= 25
• we know that
• perimeter 2s=(a+b+c)

now become equation

3s-2s = 25

s = 25

Answer 2

Answer:

25

Step-by-step explanation:

Let s be x

3s-(a+b+c)=12+9+4

3s-(a+b+c)=25

3s-2s=25

s=25