15. complete the indirect proof.

given: rectangle jklm has an area of 36 square centimeters. side jk is at least 4 centimeters long.
prove: kl < 9 centimeters

assume that a. then the area of rectangle jklm is greater than b. , which contradicts the given information that c. so the assumption must be false. therefore, d.

16. p, q, and r are three different points. pq = 3x + 2, qr = x, rp = x + 2, and . list the angles of pqr in order from largest to smallest and justify your response.

17. find the measures of an interior angle and an exterior angle of a regular polygon with 6 sides.

18. isosceles trapezoid abcd has legs ab and cd and base bc if ab = 6y – 6, bc = 4y – 7, and cd = 7y – 12, find the value of y.