Question

In the figure, l, m and n are parallel lines and the lines p and a are also parallel. then
aº + bº- cº is
​

Answer 1

Answer:

m is parallel to n

p acts as transversal

120=5c(alternate angle)

120/5=c

24=c

l is parallel to n

p acts as transversal

4a=5c

4a=120

a=120/4

a=30

l is parallel to m

p acts as transversal

4a=3b

120=3b

120/3=b

40=b

a+b-c

30+40-24

70-24

46