haithjamel
12.10.2019 •
Mathematics
Jordan sews a lace border 50 pi inches long around the edge of a circular tablecloth. what is the length of the radius from the inside edge of the lace to the center of the circular tablecloth?
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Ответ:
As can be seen from the figure above, when two lines intersect, four angles are formed. Each opposite pair are called vertical angles and are always congruent. The red angles ∠JQM and ∠LQK are equal, as are the blue angles ∠JQL and ∠MQK. Vertical angles are also called opposite angles.