Question

Help please!!!!
17. For the parallelogram, find the value of the variables. Show your work. 5x + 2 3y – 6 24 12

18. What is the length of the 2nd base of a trapezoid if the length of one base is 24 and the length of the midsegment is 19? Show your work.

19. What is the sum of the measures of the exterior angles in a heptagon? Explain.

Answer 1

18  The 2 trapezia formed by midpoint are similar so we can write

19/24 = x / 19

x = 19^2 / 24 = 15.04 

19.   360 degrees . This is true for all polygons