1.   Find the distance between points with coordinates (3, -2) and (-2, 10).
    A. 13 B.
    C. D. 7
    Hint

  2.   Find the distance between points with coordinates (3, -4) and (-6, 5).
    A. B.
    C. D.
    Hint

  3.   The distance between the points with coordinates (-8, 4) and (1, a) is 15 units. Find the value of a.
    A. -8 B. -8 or 16
    C. 8 or 16 D. 8
    Hint

  4.   The distance between the points with coordinates (3, 7) and (-2, a) is units. Find the value of a.
    A. -1 or -13 B. -1 or 13
    C. 1 or 13 D. -1 or 1
    Hint

  5.   Which are the vertices of an isosceles triangle?
    A. D(2, -6), E(1, -5), F(8, 0)
    B. G(5, 1), H(-4, 3), I(2, 6)
    C. J(0, 4), K(-3, -4), L(1, -5)
    D. A(6, 3), B(-2, 4), C(2, 11)
    Hint