Level B
1 answer:
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This is problem #9. I'm not sure how to solve #10, although the solution may be found in a similar way.
When two secants (Line A + B<span> and </span>Line C + D) intersect, they form an angle (∠y) equal to:
½ (the larger intercepted arc minus<span> the smaller intercepted arc)
</span>
(Make sure to look at the graphic I posted)
½ (the larger intercepted arc minus<span> the smaller intercepted arc)
</span>
(Make sure to look at the graphic I posted)