Question

Lines a and b are parallel. What is the measure of <8 if <1 measures 110

A)35
B)55
C)70
D)110

Answer 1

ON USATESTPREP ITS D JUST DID IT >.<

Explanation:

Answer 2

Option C. m∠8=70°

Explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle 5

we know that

m∠5=110° -----> by corresponding angles

step 2

Find the measure of angle 8

we know that

m∠8+m∠5=180° -----> by supplementary angles (form a linear pair)

we have

m∠5=110°

substitute

m∠8+110°=180°

m∠8=180°-110°=70°