As shown in the figure, in the parallelogram oabc, it is known that the coordinates of O and a are o (0,0) a (5 radicals 3,0), and the angle AOC is 60 degrees AB = 2 root sign 3, the distance from C point to X axis is 3 (1) Finding the coordinates of B and C (2) Finding the area of parallelogram oabc (3) Translate the parallelogram to the right by three root signs and three unit lengths, and get the four vertex coordinates of the parallelogram

1) make CE ⊥ X axis in E and CD ⊥ Y axis in D through C. according to the conditions OC = AB = 2 √ 3, ∠ COA = 60 ° OA = 5 √ 3  OE = √ 3, CE = 3 ⊥ C (√ 3,3), C moves 5 √ 3 units to the right to get B (6 √ 3,3) [right translation a unit: the abscissa of the graph point plus a unit, the ordinate remains unchanged] 2) s parallelogram oabc

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1. As shown in the figure, in the parallelogram ABCO, it is known that the coordinates of two points a and C are a (root 3, root 3) respectively Title: 1. Find the coordinates of point B 2. Translate the parallelogram oabc to the left by 3 unit lengths of the root, and get the coordinates of the four vertices of the parallelogram 3. Find the area of parallelogram oabc (it's not necessary to solve the root sign with the knowledge of grade one in junior high school. Thank you. Hurry up ~ ~~~~~~~~~~~~~~~~~
2. As shown in the figure, the coordinates of a, B and C are (3,0), (1, root 3), (0,1) respectively, so as to find the area of the quadrilateral oabc
3. As shown in the figure, in the parallelogram ABCO, the coordinates of C and D are C (- 3 radical 3,0), B (- 3 radical 3. - 3 radical), and (1) find the coordinates of point a As shown in the figure, in the parallelogram ABCD, the coordinates of C and D are C (- 3 radical 3,0), B (- 3 radical 3. - 3 radical), (1) find the coordinates of point a (2) The parallelogram aboc is translated to the right by two root signs and three unit lengths, and the coordinates of four vertices of the parallelogram a'b'o'c 'are obtained (3) Finding the area of a parallelogram aboc There's no mistake. It's the coordinates of A
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