Guys i need the rights sneer asap ready the question and look at the pic
the options are
a.3.14 inches
b.31.4 inches
c.15.7 inches
d.78.5 inches
guys i need the right answer asap with each steps

Ans. 31.416

Step-by-step explanation:

Perimeter of square = 40

so each side =40/4=10

hence, the diameter of the circle will be 10 inches

so, the radius = 10/2=5

therefore, the circumference = 2π r=2*3.1416*5

=31.416

Hope u got it..!!

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: