Which of these statements is true about √2?

Which of the choices shown could be used to prove that aacp=abcp ?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.