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Knase · Answer 1 · 2019-12-10T14:29:11+0000

check the picture below.

by the "inscribed quadrilateral conjecture", we know that angles at G and E are supplementary angles, namely they add up to 180°, and by the "inscribed angle theorem", we know that the arcDEF is 2(57).

What is the measure of our EF in circle H?-example-1

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