Answer:
Part A. 16.5.
Part B. 16.8.
Step-by-step explanation:
Consider the smaller circle. 2 chords intersect so by the theorem of intersecting chords: 5S = 2*7
S = 14/5 = 2.8.
Also if we consider the 2 intersecting chords in the large circle, by the same theorem:
10(4 + 2.8) = 8.5(ON + 2)
40 + 28 = 8.5ON + 17
ON = (40 + 28 - 17) / 8.5
= 6.
So the mOE = 1.5 + 7 + 2 + 6
= 16.5.
And mMY = 5 + 5 + 4 + 2.8
= 16.8.
