The vertices of pentagon PQRST are P(0, 1), Q(2, 2), R(5, 3), S(4, 0), and T(1, -1). It pentagon PQRST is reflected over the y-axis which vertex will NOT change its coordinates? B. D T.

True or false: The fourth vertex of the parallelogram shown is (a+c, d).

Show that the triangle with vertices  A(1, 2), B(−2, −1), and C(−4, 4)  is isosceles. We must first find the length of all three sides of the triangle by finding the distance between the vertices.   d(A,B) d(B,C) d(A,C) Therefore, the following conclusion can be reached

1.3 (3) The ABC triangle has the vertices A(-1, 3, 2), B(-1, 5, 2) and C(1, 5, -2). A) Demonstrates that the AABC is a rectangular. B) Calculates the measurement of the two acute angles.