Answer:
66°
Explanation:
By the Postulate of intersecting chords inside a circle.
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![m\angle GEF = (1)/(2) * \bigg [m\widehat{(GF)} +m\widehat{(UH)}\bigg] \\\\</p><p>\therefore m\angle GEF = (1)/(2) * \bigg[72\degree +60\degree \bigg] \\\\</p><p>\therefore m\angle GEF = (1)/(2) * \bigg[132\degree\bigg] \\\\</p><p>\huge \red {\boxed {\therefore m\angle GEF = 66\degree}}](https://img.qammunity.org/2021/formulas/mathematics/high-school/70d1gyvm5jm7whir853ltjy6wtz162qma6.png)