Question

Fill in the blanks:
11. The point at which two co-ordinate axis meet is called
12. class mark of the class interval 20-25 is
13. Three angles of a quadrilateral are 80°,70°,89° then the fourth angle is
14. A quadrilateral in which both pairs of opposite sides are parallel only in a
15. Volume of a cylinder is​

Answer 1

Answer:

1) Origin

2) 22.5(i guess)

3) 90° ( I guess)

4) parallelogram

5) v= πr^2h