Question

Given: DA, TO, and CG are all medians of Triangle DOG.

Find the measure of
angle DGC
Angle DAG
Angle DOG
Angle DGC
Angle DAO
Angle OCG

Please help. I have no idea where to even start.

Answer 1

Angle DGO is supplementary to 150, so DGO is 30. Angle ODG is 40+20 = 60. Angle DOG then is 180 - (m DGO + m ODG) = 180 - 30 - 60 = 90

that may make for a start

Answer 2

From there, it looks like you can find all of the angles through triangle angle sums and given information

Answer 3

How would I find angle DAG?

Answer 4

looking at triangle DAG, we know angle DGA is 30 and angle ADG is 20. So, DGA + ADG + DAG = 180 => 20 + 30 + DAG = 180

Answer 5

ooh

Answer 6

I'm stuck on finding the measure of OCG, may you help please?

Answer 7

Wait, i think i might have it. Is it 65?

Answer 8

Looking at triangle OGC, we figured out that angle COG was 90. CGO is half of DGO, which was 30. 1/2 (30) = 15. 15 + 90 + m OCG = 180

Answer 9

no wait, not 65, i mean 75

Answer 10

That would be correct. :)

Answer 11

:)

Answer 12

To find y, would I add 4y +2 + 44 = 180?

Answer 13

Damn you were a good helper

Answer 14

That property only applied to the angles of a triangle.

Basically, the centroid divides all three of those lines in a ratio of 2:1.
Looking at CG, 4y + 2 = 1/2 of 44 (since 44 would be twice the length of "4y + 2")

Answer 15

So,
4y + 2 = 22; for y
4y = 20
y = 5

Answer 16

you there?

Answer 17

Now I am. (kinda, am cleaning room lol)

Answer 18

hELP

Answer 19

please be online

Answer 20

please help

Answer 21

oh my god thank you so much for being here... I just got this assignment back and I got to redo it. I am stuck on this problem again. I can't find how to separate angle DOA. It equals 90, but I don't know which angle equals which.

Answer 22

It splits into 65 and 25, but I forgot how I got that.

Answer 23

angle DOT and TOA

Answer 24

http://openstudy.com/users/watashiwa#/updates/4f495065e4b00c3c5d32fd03

Answer 25

That's the other question with the same problem.

Answer 26

okay.. sorry, i just gotta take a look at the problem again. im not remembering the process, so i gotta work it out again. :P

Answer 27

No problem. In fact, thank you so much for taking your time :)

Answer 28

Finals are tomorrow. I'm hoping I can get at least a B.

Answer 29

man, im not seeing how you get those angles... i found most other angles except those two and some interior angles in the center