Calculate the value of \(a\) if the angles \(∠M = (\)19\(a+\)5\()°\) and \(N = (a+\)10\()°\).
Answer:
The measure of a right angle is .
By the , we have \(\angle NOL =\) .
The value of \(a\) is .
[Note: Insert the value by rounding off it to maximum of \(2\) decimal places]