Answer:
x=25
Explanation:
The angle formed by two secants= 1/2(difference of intercepted arcs)
37.5 = 1/2(100-x)
Multiply each side by 2
75 = 100-x
Subtract 100 from each side
75-100 = 100-100-x
-25 = -x
Multiply by -1
25 =x
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