Question

1. Find the value of x. Round to the tenths. (Hint: The sum of the angle measures of a

quadrilateral is 360°).
2x+6
15x-8

Answer 1

10.7 °

Explanation:

In this problem, there are two angles with degrees of 2x + 6 and two angles of degrees of 15x - 8. We know the sum of the four angles is 360, as stated in the problem. Thus we can set up the following equation:

2(2x + 6) + 2(15x - 8) = 360

4x + 12 + 30x -16 = 360

34x - 4 = 360

34x = 364

x ≈ 10.7 °