Parallelogram is a rectangle if and only if its diagonals S
are
Decide whether each is a rhombus, rectangle, square, none
of these, or all of these.
7. A(-8, -3), B(-5,3), C(1, 0), D(-2,-6)
8. A(-6, -3), B(-6, -8), C(-2,-5), D(-2, 0)
9. A(-7, 1), B(-4,-4), C(2, 2), D(-3, 4)
Given rhombus ABCD, find the measure of the indicated