Answer :
The measure for m (AB) is 128 degree.
What is Arc?
An "arc" in mathematics is a straight line that connects two endpoints. An arc is typically one of a circle's parts. In essence, it is a portion of a circle's circumference.
A curve contains an arc. A circle is the most common example of an arc, yet it can also be a section of other curved shapes like an ellipse.
We have,
The top of the easel forms a 30° angle and m (BC) = 22°.
As per the question,
AD = ED and m So, m = 1/2 (180 - m = 75 and, m = 1/2(22) = 11 Then, m = 75 - 11 = 64 Also, m (AB) = 2 x 64 = 128 Learn more about Arc here: https://brainly.com/question/18741430 #SPJ5