1. x12+y12-x22-y22
2. x1x2+y1y2
3. x1y2+x2y1
4. x1y2-x2y1|
x1y2-x2y1|
1. 64/63
2. 63/65
3. 56/36
4. 36/56
63/65
1.
2.
3.
4.
1. Parallelogram
2. rectangle
3. rhombus
4. aquare
aquare
1. paralleogram
2. rectangle
3. rhombus
4. square
rectangle
1. paralleogram
2. rectangle
3. rhombus
4. square
rhombus
1. paralleogram
2. rectangle
3. rhombus
4. square
paralleogram
1. (a-2)2= b2
2. (a+2)2= b2
3. (a-4)2= 3b2
4. done
(a-4)2= 3b2
1. (3,-4)
2. (7,2)
3. (5,-1)
4. (0,0)
(5,-1)
1. (-1,-1)
2. (-1,1)
3. (1,-1)
4. (1,1)
(1,1)