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cupoosta [38]
3 years ago
14

PLEASE HELP IM STRUGGLING!!

Mathematics
1 answer:
dem82 [27]3 years ago
3 0
Use the tangent-chord theorem:
The included chord-tangent angle is half the size of the intercepted arc.

The intercepted arc is "c".
The included chord-tangent-angle is the supplement of 110=70 degrees.
Therefore from the tangent-chord theorem, 70 degrees = half the size of arc "c"
=>
arc "c" = 2*intercepted angle = 2*70 degrees = 140 degrees.

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