Construct a triangle with sides equal to a and b having C as the included angle

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

What is 74 round to the nearest ten