Hello! I have a question on terminology in math. Could you tell me how to call this shape from the attached image in English? Thanks in advance.

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Kohei

Community Tutor

Sep 18, 2023 6:02 AM

Answers · 5

A circle is centered at O. It contains has three points, P, A, and B on its boundary. The measure of angle APB is 20°. The angle from the center that intercepts the same arc AB measures x. From Euclidean geometry, we know that x=40°.

September 18, 2023

I looked it up, maybe, “Inscribed angles”? https://www.cliffsnotes.com/study-guides/geometry/circles/arcs-and-inscribed-angles heres a link to the math page I found with some terminology and it breaks it down a little bit. Hopefully someone can give us an exact answer! :)

September 18, 2023

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