Answer:
Below in bold,
Explanation:
5.
m < JIK = the sum of the measure of the other 2 angles so we have:
140 - 6x = 20x - 10 + 8x - 20
140 + 10 + 20 = 20x + 6x + 8x
170 = 34x
x = 5.
m < JIL = 20(5) - 10 = 90 degrees.
m < LIK = 8(5) - 20 = 20 degrees.
m < JIK = 140 -5(5) = 110 degrees.
6. 5x = 8x - 4 (as QB is the bisector of < AQC.
Solve for x then substitute the value of x as in question 5.