Question

answer only if you know........
remember the answer should be
a:b=1:8​

Answer 1

Answer:

a=20° (r+ left of r = 180° , left of r is 160 , 160+a is 180 , so a is 20° )

b=160° (a+b=180° , co - interior angles )

Step-by-step explanation:

If u found the answer useful , please thank this , follow me and

Most important mark it a s brainliest answer

Answer 2

Answer:

Since r=20°

this implies that a=20°. [Vertically opposite angle]

also l || m

this implies that

~>a + b =. 180°[ co interior angle]

~> b =180° - a

~>b =180°-20°

=160°

~> a:b= 20° :160°

=1:8

HOPE IT HELPS!

MARK IT AS BRANLIEST.