Question

Based on the diagram below, which statement is true? b a C 110° 115° d 60° e 120° Oь || с Oa || ь alle Odlle

Answer 1

we have that

Verify each statement

1) b parallel to c

If b is parallel to c then

115+60=180

175=180 ----> is not true

2) a parallel to b

If a is parallel to b

then

110+60=180

170=180 -----> is not true

3) a parallel to c

If a is parallel to c

then

110=115 -----> is not true

4) d parallel to e

If d is parallel to e

then

60+120=180

180=180 -----> is true

therefore

the answer is

d parallel to e

Part 2

In this problem

If n and m are parallel

then

the interior angles of the triangle are

30, 80 and x degrees

so

30+80+x=180

110+x=180

x=180-110

x=70 degrees