jaelynnm
15.01.2022 •
Mathematics
0. Endpoint is (14,-9) and midpoint is (7,-3) what is the other endpoint
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Ответ:
A) ∠BEC is one-half of ∠BAC
B) ∠BEC = 60°
C) ∠BDC = 120°
Step-by-step explanation:
C) arc BDC = 120°
arc BEC = 360° - 120° = 240°
∠BDC = 1/2(240°) = 120°