## somebodys_heartbrake 2 years ago Which lines must be parallel if 15 is congruent to 7? A. x and z B. c and d C. x z and c d D. no lines are parallel

1. somebodys_heartbrake

2. tanvirms

c and d.....as 15 and 7 are the equal alternate angles.....so c and d will be parallel

3. somebodys_heartbrake

Which of the following is a point on the line shown? A. AB B. B C. AC D. D

4. tanvirms

B, duh :P AB n AC are line segments, D doesnt exist.

5. somebodys_heartbrake

Which lines must be parallel if 2 is congruent to 5? A. x and z B. c and d C. x z and c d D. no lines are parallel

6. tanvirms

2 will be always congruent to 5, they are verticall opposite angles, so no lines are parallel

7. somebodys_heartbrake

How many planes are in the following figure A. 3 B. 4 C. 5 D. 6

8. tanvirms

how many does it look like?

9. somebodys_heartbrake

6

10. tanvirms

exactly :)

11. somebodys_heartbrake

What is the length of segment AD on the number line below? A. -5 B. -3 C. 3 D. 5

12. tanvirms

how long does it look like?

13. somebodys_heartbrake

to tell you the truth i really dont know how this one works

14. tanvirms

length can never be negative, right?? here, A to B is 1, B to C is 1, and C to D is 1, and that adds up to????

15. somebodys_heartbrake

3

16. tanvirms

see? it's not even close to 'tough'

17. somebodys_heartbrake

Identify A and B as either vertical, complementary, or supplementary angles. A. Vertical B. Complementary C. Supplementary

18. tanvirms

do u know what vertical angle, complementary angle and supplementary angle mean?

19. somebodys_heartbrake

no

20. somebodys_heartbrake

ok i dont think it is A so it is either B or C

21. tanvirms

vertical angles are those opposite angles that form when two lines intersect.....when two angles sum up to 90 they are called complementary angles, and when they sum up to 180 they are called supplementary angles.....what do u think about this one?? how much do they sum up to?

22. somebodys_heartbrake

i think it is C

23. SoulSand

@tanvirms Complementary angles are two angles with a sum of 90º. Supplementary angles are two angles with a sum of 180º. Vertical angles are two angles whose sides form two pairs of opposite rays. We can think of these as opposite angles formed by an X.

24. somebodys_heartbrake

i think it is C but i am not sure

25. SoulSand

Please create a new post for each new question! It makes it easier for the rest of us to find and answer your questions!

26. cwrw238

A + B = 90

27. cwrw238

angles A and B that is

28. tanvirms

@SoulSand yeah thats what i said :)

29. tanvirms

A+B=90 so they are complementary

30. somebodys_heartbrake

In the above figure, find m<AED-m<BEC. A. 112 B. 75 C. 10 D. 93

31. tanvirms

28+47+65-47

32. somebodys_heartbrake

93

33. somebodys_heartbrake

If <A and <B are vertical angles, and <A = 38°, find the measure of <B. A. <B = 7° B. <B = 57° C. <B = 38° D. <B = 142°

34. tanvirms

vertical angles are always equal :)