Which of the following is not sufficient to prove a parallelogram is a rhombus? All sides are congruent.
Diagonals bisect the angles.
Diagonals bisect each other.
Diagonals are perpendicular.

Karl needs to build a stage that has an area of 72 square feet.the length of the stage should be longer than the width.what are the possible whole number measurements for the length and with of the stage complete the table with possible measurements of the stage

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1