Find the length of a diagonal of the rectangle abcd with vertices a (-3,1), b (-1,3), c (3,-1), and d (1,-3).
•5.7
•6.3
•3.2
•4.5

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Which value of y will make the inequality y< -1 false?

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?