Isosceles triangle ABC, the bottom BC is on the negative half axis of X axis, point B is at the origin, the area of triangle ABC is 12, BC is equal to 6, find the coordinates of point a As shown in the figure, the isosceles triangle ABC, the bottom edge BC is on the negative half axis of the X axis, and the point B is at the origin. It is known that the area of the triangle ABC is 12, BC is equal to 6, and the coordinates of point a are obtained

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• 1. Given the points a (- 5,0), B (3,0), find a point C on the y-axis so that it satisfies s △ ABC = 16, and find the coordinates of point C
• 2. Given the points a (- 5,0), B (3,0); (1) find a point C on the y-axis to satisfy s △ ABC = 16, find the coordinates of point C (necessary steps); (2) find a point C on the rectangular coordinate plane, how many C can satisfy s △ ABC = 16? What are the characteristics of these points?
• 3. Given the area of △ ABC on the x-axis of points a (0, - 3), B (0, - 4) and C is 1.5, the coordinates of point C are obtained
• 4. As shown in the figure, in the plane rectangular coordinate system, the straight line y = x + 4 intersects with the X axis at a, and intersects with the Y axis at point B, point C (- 2,0) 2. Make OD ⊥ BC intersection AB at point O, and calculate the coordinates of point D; 3. If the line y = kx-k has an intersection with line BD, calculate the value range of K
• 5. In the plane rectangular coordinate system, the coordinate of point a is (√ 3 - √ 2,0), and the coordinate of point C is (- √ 3 - √ 2,0). B is on the Y-axis and s triangle ABC = √ 3, then the coordinate of point B is obtained Help!
• 6. In the plane rectangular coordinate system, a (1,0), B (5,0), point C is on the y-axis, and s △ ABC = 4, find the coordinates of point C
• 7. In the rectangular coordinate plane, make points a (6,0), B (0,8), and find point C on the coordinate axis to make the triangle ABC into an isosceles triangle, Find the coordinates of all points c that meet the conditions,
• 8. Given a (0,2) and B (4,2) in the plane rectangular coordinate system, find a point C on the x-axis so that the triangle ABC is an isosceles triangle. How many points c meet the condition? The standard answer is five, but it is not clear how these five constitute
• 9. It is known that there are two points a (- 1,1) and B (3,2) in the plane rectangular coordinate system. Find the point C on the x-axis so that △ ABC is an isosceles triangle
• 10. If a (- 2,0) and B (- 4,5) are known in the plane rectangular coordinate system, we can find a point C on the x-axis to make the triangle ABC The area of the road is 6
• 11. In the rectangular coordinate system, the coordinates of the three vertices of △ ABC are a (1,1), B (3,1), C (1,3), respectively. This paper explores the three vertices of △ def symmetrical about the origin of △ ABC Point coordinates, and determine the analytical formula of line EF
• 12. As shown in the figure, the coordinates of the three vertices of △ ABC in the rectangular coordinate system are a (3,3), B (- 6, m), C (n, - 2), and the edge AB passes through the origin If △ AOD of is folded along the x-axis, then a coincides with the point A & # 39; on the edge of BC, and the coordinates of (1) point A & # 39; and (2) point B and point C are obtained
• 13. For an equilateral triangle ABC with side length 4, establish an appropriate coordinate system and write out the coordinates of each vertex (1) High Ao on y-axis (2) Vertex B is at the origin and edge BC is on the X axis
• 14. As shown in the figure, in the plane rectangular coordinate system, △ ABC is an equilateral triangle, and the side length is 2. If the coordinates of point a are known to be (4,4), and BC is parallel to the axis, then the coordinates of point C are equal The coordinates are () A. (5,4-radical 3) B, (5,4 + radical 3) C, (5,2-radical 3) d, (5,2 + radical 3) Sorry, there is no picture
• 15. Let a (5, - 2) and B (7,3) be known in the triangle ABC, and let the midpoint m of AC be on the Y-axis and the midpoint n of BC be on the x-axis
• 16. It is known that △ ABC ∽ def, the perimeter of △ ABC and △ def are 20cm and 25cm respectively, and BC = 5cm, DF = 4cm. The lengths of EF and AC are calculated
• 17. It is known that △ ABC ≌ Δ def, if the perimeter of △ ABC is 32ab = 9, BC = 11, then de =, EF =, DF=
• 18. In △ ABC and △ def, AB / de = BC / EF = AC / DF = = 4, find the ratio of the perimeter of △ ABC to that of △ def Utilization ratio
• 19. It is known that △ ABC is all equal to △ def. If the circumference of △ ABC is 32, and ab = 8, BC = 2, try to find out the lengths of De, EF, DF and DF respectively Big brother, big sister, what, do me a favor
• 20. If △ ABC ≌ Δ DEF is known, if the circumference of △ ABC is 38, ab = 8, BC = 12, then de =? EF =? DF =? Who can write down the process of finding DF,