Created by StemPy LabThe corners P, Q, R and S of a four-sided figure lie on one circle. Side QR is extended beyond R to T, and the angle SRT is . Which angle inside the figure also measures ?
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← Four posts P, Q, R and S stand on the rim of a round pond, in that order. The angle at P of the four-sided figure is 79°. What is the angle at R, the post opposite P?Mia marks a spot strictly inside a round track and wants a straight line from it that only brushes the track edge. How many such lines exist? →
More onGeometry › Circles
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