Final answer:
To find the measure of angle PQR, we can use the fact that the sum of the angles in a triangle is 180 degrees. By substituting the given expressions for the angles in the equation and solving for x, we can find the value of x and then calculate the measure of angle PQR.
Step-by-step explanation:
To find the measure of angle PQR, we can use the fact that the sum of the angles in a triangle is 180 degrees. So we have:
(7x-19) + (2x-3) + (x-16) = 180
Simplifying the equation, we get:
10x - 38 = 180
Adding 38 to both sides and solving for x, we get:
10x = 218
x = 21.8
Now we can substitute the value of x back into the equation for angle PQR:
(7(21.8) - 19) = 130.6 degrees