∵AB is diameter ⊙ O, chord CD⊥AB,
∴DH= 12DC= 12×45=25，
In Rt△OHD, ∫OD2-OH2 = DH2, OH2=(AH-OA)2=(5-r)2,
∴r2-(5-r)2=(25)2，r=92，
∴⊙O has a radius of 92;
(2) For OG⊥AE, the vertical foot is G, as shown in the figure.
∴AG= 12AE= 12x，
∴△AOG∽△AFH，
∴ ag: ah = ao: af, that is, 12x: 5 = 92: af, and the solution is AF=45x.
∴FH=AF2？ AH2=(45x)2？ I've praised it all. I've stepped on it. What is your evaluation of this answer? Put away your comments and recommend lawyer services: If your problem is not solved, please describe your problem in detail and provide free professional consultation through Baidu Legal Pro. Other similar questions 2022-07-3 1 In χ O, AB is the diameter of χ O, CD is the chord, points E and F are on AB, and EC ⊥ CD and FD ⊥ CD verification: AE. As shown in the figure on August 29th, 2022, AB is the diameter of circle O, the chord CD is perpendicular to AB, and the vertical foot is H2016-12-01. As shown in the figure, AB is the diameter of the circle O, the chord CD is perpendicular to AB, and the vertical foot is H ..1442010-23. As shown in the figure, AB is known as the diameter ⊙O, the chord CD⊥AB, and the vertical foot is H. (/kloc 582016-12-01As shown in the figure, AB is the diameter of the circle O, CD is the chord, CD is perpendicular to AB, and the vertical foot is H89. More similar questions? & gt recommended for you: F.context('cmsRight', [{'URL':'/d01373f082025aaf511aa256e9edab64034f1a07? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId':'A24KA00562 '，}，{ ' URL ':/s？ word = % E6 % AC % A7 % E6 % B4 % B2 % E6 % 9D % AF & sa = searchpromo _ ozb _ zhidao _ tuijian '，' src ':'/3 BF 33 a 87 e 950352 AAF 5 df 4954 143 fbf2b 2 1 18 b6b？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto '，' contractId ':' '，}])； Is Huaqiang North's second-hand mobile phone reliable? Why is the cost of cancer treatment getting higher and higher? What impact will the "network toilet" have? The price of electric cars has dropped many times. Is the quality guaranteed? I recommend f.context ('recbrand', [{"img": "\/86D6277F9E2F07083523F69DFB 24B 899A901F20d? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 450% 2Ch _ 600% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto "，" url":"/hm.js？ 6859 ce 5a af 00 FB 00387 e 6434 E4 FCC 925 "； var s = document . getelementsbytagname(" script ")[0]； s.parentNode.insertBefore(hm，s)； })(); window . TT = 1720045064；