Question

please help!!

Which ray is opposite CD ?

A. CD
B. BD
C. AC
D. CA
https://rialto5819-ehs-pps.gradpoint.com/Resource/2146263,72F,0,0,0,0,0/Assets/testitemimages/geometry_a/tools_of_geometry/mc063-1.jpg

Answer 1

D. CA

Answer 2

how do you know?

Answer 3

@cebroski

Answer 4

An opposite ray is a ray that shares an endpoint and goes in the opposite direction.

Answer 5

thanks

Answer 6

Ray CA shares the endpoint C with ray CD. Ray CA also points in the opposite direction as ray CD. Therefore, CA is an opposite ray to ray CD.

Answer 7

can you help me some more please ?

Answer 8

with other questions

Answer 9

Perhaps.

Answer 10

What question do you have?

Answer 11

f AD = y + 6 and DC = 2y, what is the length of DC?

15
-12
12
-15
https://rialto5819-ehs-pps.gradpoint.com/Resource/2146263,72F,0,0,0,0,0/Assets/testitemimages/geometry_a/tools_of_geometry/mc083-1.jpg

Answer 12

if AD = y + 6 and DC = 2y, what is the length of DC?

15
-12
12
-15

Answer 13

AD = DC
y + 6 = 2y
6 = y
DC = 12

Answer 14

thanks