In the triangle ABC, a square tanb = b square Tana, judge the shape of the triangle

RELATED INFORMATIONS

• 1. We know that the first-order function y = - 2x + 4 intersects with the x-axis and y-axis, and points a and B (1) make the isosceles triangle ABP with ab as the edge, if P is in the first quadrant (1) Make an isosceles triangle ABP with ab as the edge. If P is in the first quadrant, ask for the coordinates of point P (2) Under the conclusion of 1, make a parallel line of line AB through point P, intersect the x-axis, Y-axis with point C and point d respectively, and calculate the area of quadrilateral ABCD The first question is wrong. It's an isosceles right triangle
• 2. As shown in the figure, it is known that there are two points a (- 2,0), B (4,0) in the plane rectangular coordinate system, the point P in the first-order function y = 2 / 1 x + 2 / 5, and △ ABP is a right triangle Find the coordinates of point P
• 3. The first-order function y = x + 3 and X, Y axis intersect at two points a and B respectively, and there is a point P on the coordinate axis, so that the triangle ABP is a right triangle, and the coordinates of point P are obtained
• 4. If we know that the image of a linear function y = 2x + A, y = - x + B passes through a (- 2,0) and intersects with y axis at two points B and C respectively, then the area of △ ABC is () A. 4B. 5C. 6D. 7
• 5. If we know that the images of the linear functions y = 3 / 2x + m and y = 1 / 2x + n pass through point a (2,0) and intersect with y axis at two points B and C respectively, then the area of △ ABC is
• 6. The first-order function y = 3 / 2x + 3 and y = - 1 / 2x + Q both pass through a (m, 0) and intersect with y axis at points B and C 1 respectively. Try to find the area of △ ABC. 2. Point D is a plane The linear functions y = 3 / 2x + 3 and y = - 1 / 2x + Q pass through a (m, 0) and intersect with y axis at points B and C respectively 1. Try to find the area of △ ABC 2. Point D is a point in the plane rectangular coordinate system, and the quadrilateral with points a, B, C and D as the vertex is a parallelogram. Please write the coordinates of point d directly 3. Can we draw a straight line through the vertex of △ ABC, so that it can divide the area of △ ABC equally? If we can, we can find the functional relationship of the straight line; if not, we can explain the reason
• 7. For example, the image of the first-order function y = - 2 / 3x + 2 intersects with the x-axis and y-axis at point AB respectively. With the line AB as the edge, the isosceles triangle ABC is made in the first quadrant, ∠ BAC = 90 ° For example, if there is a point P on the intersection D of AC and y-axis, OA, and the intersection ab of the vertical line of x-axis, AC is at two points m and N, if Mn = 1 / 3bd, the P coordinate is?
• 8. It is known that the abscissa of point a (- 2,0), B (4,0) P on the image of function y = 1 / 2x + 2 is m. when the triangle PAB is a right triangle, the value of M is obtained When p is a right angle
• 9. In the triangle ABC, the vertical bisectors of edges AB and AC intersect point P. it is proved that point P is on the vertical bisector of BC It's an equilateral triangle
• 10. In △ ABC, ACB is 90 ° and CD ⊥ AB is made at d through point C. e is the midpoint of BC. Connect ed and extend the extension line of intersection CA to F. verify: AC / DF = BC / CF In △ ABC, ∠ ACB = 90 °, make CD ⊥ AB at d through point C, e is the midpoint of BC, connect ed and extend the extension line of intersection Ca at F. verification: AC / DF = BC / CF
• 11. It is known that in the triangle ABC, the angles a, B and the opposite sides of angle c are respectively a, B and C, which are the following lengths. Judge whether the triangle is a right triangle
• 12. 1. In triangle ABC, angle a-angle B = angle c, then this triangle is a right triangle? (judgment) 2. A conical grain bin has a bottom circumference of 6.28 meters and a height of 0.9 meters. If it is installed in a cylindrical grain bin with a bottom radius of 2 meters, how high can it be stacked?
• 13. According to the conditions, judge whether the angle ABC is an acute triangle, a right triangle or an obtuse triangle. (1) angle a = 76 degrees, angle B = 89 degrees. (2) angle a-angle B = angle C (3) Angle a = 20 degrees, angle B = 3, angle c
• 14. In the plane rectangular coordinate system, s △ ABC = 48 ∠ ABC = 45 ° BC = 16, calculate the coordinates of each vertex of △ ABC A is on the positive half axis of Y axis B is on the negative half axis of X axis C is on the positive half axis of X axis
• 15. Given that the area of triangle ABC is 5, a (1,2), B (4,6), find the trajectory coordinates of vertex C
• 16. What is the coordinate of ABC area 12 and C on Y-axis of a (- 5,0) B (3,0) triangle Point a (- 5,0) point B (3,0) triangle ABC area 12, What is the coordinate of C on the Y axis How many are there at point C Coordinate characteristics of point C
• 17. Given that point a (- 5,0) B (3,0) point C is on the Y axis, and the area of triangle ABC is 12, the coordinate of point C is?
• 18. As shown in the figure, in the plane rectangular coordinate system, given the area of points a (- 5,0), B (3,0), △ ABC is 12, try to determine the coordinate characteristics of point C
• 19. Given a (- 5,0), B (3,0) and C on the y-axis, the area of the triangle ABC is 12, the coordinates of C can be obtained
• 20. As shown in the figure, in the plane rectangular coordinate system, given the area of points a (- 5,0), B (3,0), △ ABC is 12, try to determine the coordinate characteristics of point C