Question

i. In Figure 15a, if x = y and
a= b, prove that I || n.​

Answer 1

Answer:

if angle a= b

so, l=m---1)

and,

x=y

m=n--------2)

from 1&2

l=m=n

so we can say that

L||m and m|| n

by Euclid's axiom

L||n

hope it will help you

Answer 2

Answer:

Step-by-step explanation:

firstly a=b so they are corresponding angles

as due to this we can write l is parallel to m  statement i)

x=y so so they are corresponding angles. now

we too can write m is parallel to n. statement ii)

now from we can write L is parallel to N (by saying from st. i and ii )