Answer:
Step-by-step explanation:
Comments
AE = AT = 7 Given
AT is a perpendicular bisector of OS Property of a circle
AE is a perpendicular bisector of BR Property of a circle
ER = 1/2 BR = 48/2 = 24 Property of a bisector
TS = ER Property of a bisector and chord
TS = 24 ER = 24 so TS = 24
AS^2 = TS^2 + TA^2 Pythagorean Theorem + rt angle
AS^2 = 24^2 + 7^2 Substitute values
AS^2 = 576 + 49 Combine
AS^2 = 625 Take sqrt of both sides
√AS^2 = √625
AS = 25
Answer
AS = 25
