the quadrilateral is a parallelogram and has measurements of QT=(3x+5) and

interior angle T (9x-17). what is the value of x?

1 answer

Since the quadrilateral is a parallelogram, opposite sides are equal in length. Therefore, QT = (3x + 5) and TQ = (3x + 5).

Also, in a parallelogram, adjacent angles are supplementary. This means that angle Q + angle T = 180 degrees.

Given that angle T = (9x - 17), we can write the equation:

angle Q + (9x - 17) = 180

Since angle Q and angle T are opposite angles, they are equal. Therefore, angle Q = (9x - 17).

Substitute that into the equation:

(9x - 17) + (9x - 17) = 180
18x - 34 = 180

Now, solve for x:

18x = 214
x = 214 / 18
x = 11.89

Therefore, the value of x is approximately 11.89.