If angle 10 and 15 are congruent ( the same) that would mean lines a and b would need to be parallel with each other because that have the same angles.
The answer ic C.
Answer:
C. lines a and b
Step-by-step explanation:
Angles ∡10 and ∡11 are congruent.
Also, angles ∡15 and ∡14 are congruent.
If ∡10 and ∡15 are congruent, it means that all of four angles ∡10, ∡11, ∡14, ∡15 are congruent.
That also means that ∡9, ∡12, ∡16 and ∡16 are congruent:
∡9=180°-∡10 and ∡13=180°-∡15
Since ∡10 and ∡15 are congruent, it yields that ∡9 and ∡13 are congruent.
Same argument for ∡12 and ∡16.
Therefore, lines a and b are parallel.
3
x
+
6
2
8
24
47
−
fraction x=7/5
mixed number x= 1 2/5
decimal x=1.4
triangle ABD> triangle BDC answer is B
reason is because A-D is 5 while B-C is 4.5 the other sides are equal so ABD is larger
