Which of the following is the best approximation of the circumference of a bicycle wheel whose diameter is 26 centimeters? 82 cm
163 cm
531 cm
2,123 cm

Jayda's house is located at (1, 5). she can walk in a straight line to get to cristian's house. a fast-food restaurant is located at (11, 0) and partitions the way from jayda's house to cristian's house by a ratio of 5: 1. find the coordinate of cristian's house. me . im a little stuck

Does the point (1, sqrt 7) lie on circle shown.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.