(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 ':' '，}])； 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 = 1720053269；