The definition of a circle uses the undefined term arc line plane ray

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

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

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?