Question

Three sides of triangle are s+5t-2 , s-8 and 2s-4t+5. what is its perimeter?​

Answer 1

Step-by-step explanation:

s+5t-2+s-8+2s-4t+5

s+s+2s+5t-4t-2-8+5

4s+t-5

Answer 2

Step-by-step explanation:

perimetre of a traingle=s+5+5=(s+5t-2)+(s+8)+(25-4t+5)=s+5t-2+5-8+2n-4t+5=4s+t-5