What is the answer for the attached picture

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asked Nov 14, 2020 199k views

1 Answer

Rprospero · Answer 1 · 2020-11-21T06:13:08+0000

It should be 13 as well
Because the arc length of CDE and ABCD are both 90 degrees. They share 20 degrees from arc CD and they already both have 70 degrees. So if the arc length is equal, the corresponding chords should be equal too.

What is the answer for the attached picture

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