CBSE - Lines and Angles

1 Lines and Angles 

There are four lines in a plane no two of which are parallel. The maximum number of points in which they can intersect is: 

(1) 4 
(2) 5
(3) 6 
(4) 7

2 Lines and Angles 

Angle between the lines  6 + x = 0 and 3 – y = 0 will be

(1) 0° 
(2) 90° 
(3) 180° 
(4) 60°