(2) Solution: ① According to the diagram, C (6 6,2), D (2 2,0),
So the answers are: (6,2), (2,0);
② Solution: In the right angle △AOD, according to the Pythagorean theorem, the radius of ⊙D is known as AD=OA2+OD2=42+22=25.
So the answer is: 25;
(3) Solution: Connect AC and OC, cross C at H point as CH⊥AO, and cross A at M point as AM ⊥ co. 。
So 12OA? CH= 12OC？ AM, that is,12× 4× 6 =12× 210? AM，
Solution, am = 6105;
In Rt△AMC, sin∠ACO=AMAC= praised and trampled. What's your comment on this answer? Put away comments//high quality or satisfaction or special types or recommended answers dottimewindow.iperformance & window.iperformance.mark ('c _ best',+newdate); Lawyer recommendation service: If your problem is not solved, please describe your problem in detail and provide free professional consultation through Baidu Legal Pro. Other similar problems 20 12-02-06 are shown in the figure, in a square grid with a unit length of 1. An arc passes through the grid intersection points a, b, C.2920 12-05- 13. As shown in the figure, an arc passes through the grid intersection A.B.C to find the angle AC ... 112013. In a square grid with a unit length of1,an arc passes through the grid intersection A, B and C.42016-. In a square grid with a unit length of 1, an arc passes through the intersections A, B and C of the grid. With point O as the origin, the vertical and horizontal directions are 220 1 6-1 kloc-0/.As shown in the figure, in a square grid with unit length of1,an arc passes through the intersections A, B and C of the grid (1). Please complete the following operations: ① Take point O as the coordinate 920 15-0 1-29. In a square grid with a unit length of 1, an arc passes through grid points A, B and C. (65438. 220 1 6-12-01As shown in the figure, in a square grid with a unit length of1,an arc passes through the intersections A, B and C (1) of the grid. Please complete the following operations: ① Take point O as the original 12065438. & 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 ':' '，}])； The price of electric cars has dropped many times. Is the quality guaranteed? What impact will the "network toilet" have? Is Huaqiang North's second-hand mobile phone reliable? Why is the cost of cancer treatment getting higher and higher? 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 = 1720036903；