Read the following statements: I. A parallelogram must have 4 angles measuring 90 degrees or greater.

II. A parallelogram must have 2 sets of parallel sides.

III. A parallelogram must have exactly one set of parallel sides.

Which of the above statements are true?

III only
I and II only
II only
I and III only

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet