Maths

2. a ____ point of tangent and circle is called point of contact
5. _______________ of two polygons is not sufficient for them to be similar
6. which set of lines will have an inconsistent system
8. assumption that the frequency of a class is centered at its midpoints
9. U-shaped curve drawn for every quadratic equation
12. sum of probability of all elementary event of an expirement
14. angle formed by line of sight with horizontal ehen above line of sight level
16. part of quadratic formula underneath the square root symbol b2-4ac
18. to calculate the mode and median for grouped data we should ensure that class intervals are ______
19. in which theorem ratio of any two corresponding sides 2 equiangular triangles is always same
20. what is the event called which only has one outcome
21. is a line that intersects the circle at only one point

1. list of numbers in which each term is obtained by adding a fixed number to preceding term except first term
3. the distance of a point from the x axis is called (other name)
4. polynomial of degree 1
7. study of relationships between the sides and angles of a triangle
10. the distance of a point from the y-axis is called (other name)
11. frequency of a class which is obtained by adding frequency of all classes preceding the given class
13. line drawn from the eye of an observer to point in the object viewed by observer
15. the Meath of where we substitute value of one variable in terms of other to solve linear equations
17. an equation in the variable x in form of ax2+box+C=0