Question

use the image below to find the requested values.
find the measure of \\( \angle grk \\).

Explanation:

Step1: Use the property of linear pair

Angles forming a linear pair sum to \(180^{\circ}\). So, \((4d + 20)+128 = 180\).

Step2: Solve for \(d\)

$$
LATEXBLOCK0
$$

Step3: Find \(\angle GRK\)

Substitute \(d = 8\) into \(4d+20\). \(\angle GRK=4\times8 + 20=32+20 = 52^{\circ}\)

Answer:

\(52^{\circ}\)