1. If the length of three sides of a triangle ABC is continuous even, M is the midpoint of AB, MC = ma = 5, then the area of triangle ABC is 2. On the elevator, Xiao Kai's height is 1.8 meters. If Xiao Kai's head rises 6.2 meters with the elevator, the distance of Xiao Kai's feet is 3. Given that the point P (x, y) is in the second quadrant, and Y is less than or equal to x + 4, x, y are integers, write out the coordinates of a point P that meets the above conditions 4. For the function y = (K-3) x + K, when k = it is a positive proportional function, when k = it is a linear function 5. If the solution of {ax + by = 2 is the same as that of {2x + 3Y = 4, then a =, B = ax-by=2 4x-5y=-6

1. If the length of three sides of a triangle ABC is continuous even, M is the midpoint of AB, MC = ma = 5, then the area of triangle ABC is 2. On the elevator, Xiao Kai's height is 1.8 meters. If Xiao Kai's head rises 6.2 meters with the elevator, the distance of Xiao Kai's feet is 3. Given that the point P (x, y) is in the second quadrant, and Y is less than or equal to x + 4, x, y are integers, write out the coordinates of a point P that meets the above conditions 4. For the function y = (K-3) x + K, when k = it is a positive proportional function, when k = it is a linear function 5. If the solution of {ax + by = 2 is the same as that of {2x + 3Y = 4, then a =, B = ax-by=2 4x-5y=-6

1. If Ma = 5, ab = 10
Then discuss: if AC = 6, BC = 8 meet the conditions, the result is a right triangle, the area is 24
2. It's still 6.2 meters
3、（-2,2）
4. K = 0 is once, K is not equal to 0 and not equal to 3 is once
5. First, we get x, Y. x = 1 / 11, y = 14 / 11
A = 22, B = 0