Across
- 3. Great French mathematician __________ solved the problem of describing the position of the point in a plane and gave rise to Coordinate geometry.
- 6. find the value of a when the distance between the points (3, a) and (4, 1) is √10.
- 8. The point of intersection of the axes is called the _______.
- 9. If the points are collinear, then the area of triangle formed by using these three points is ___.
Down
- 1. The branch of geometry which involves application of algebra is called __________________ geometry.
- 2. If the point (-a, b) lies in II quadrant, then a is __ than 0. (<,>,=)
- 4. Cartesian system is also called __________ system.
- 5. If the points A(0,0), B(1,0), C(1,1) and D(0,1) are the vertices of a quadrilateral, then which type of special quadrilateral is it?
- 6. The coordinate axes divide the Cartesian plane into _____ quadrants.
- 7. The area of a square with coordinates A(0,0), B(1,3), C(4,2) and D(3,-1) is _____ sq, units.