Question

lines and angles class 9 ex 6.2 6th sum​

Answer 1

Answer:

A(-6,p), B(10,6) and C(30,q) and 3 collinear points. also 4q+5p=k. find the value of k.

Answer 2

Answer:

PQ||RS,AB,BC,CD are Ray's

to prove = AB||CD

construction= BM is perpendicular PQ,CN perpendicular RS

= BM||CN ( perpendicular on parallel are

also parallel )

∆1=∆2

∆3= ∆4 { law of reflection } -1

∆2=∆3 { alternate interior angles } -2

∆1=∆2=∆3=∆4 { by 1 and 2 }

∆1+∆2+∆3+∆4

∆ABC=∆BCD { these angles are alternate

interior angles }

therefore, AB||CD