1. ## Triangles. help me with these questions please

Help please.. so my teacher gave this extremely hard geometry questions without even explaining it clearly. so i'm stucked and confused.. help me with these questions please!
as much as possible, please explain so i can do it on my own when it comes to our test.. or if you dont want to answer, just explain it to me so i can answer it on my own..
P.S: I removed numbers 1, 3, 4, 5, 6 and 8 because I already solved their answers.. thanks

2.Can a triangle have angles equal to
a. 55
°, 65°, 70°
b. 53
°, 64°, 73°
c. 80
°, 105°, 5°
7. In
(triangle)△DEF, <D, <E and <F -44° (deg), Find <D and <E

thanks guys!
thank you so much.. you don't need to answer all of them.. only if you can.. i need help here.. explain please..

2. ## Re: Triangles. help me with these questions please

The sum of the angles of any triangle is 180°. You can use that fact for nearly all of the problems.

For example, 1a. 55° + 75° + x° = 180°. Simplifying LHS gives 130° + x° = 180° --> x = 50.

3. ## Re: Triangles. help me with these questions please

thanks.. but what about number two? it has three.. :|| what am i going to do?

4. ## Re: Triangles. help me with these questions please

Originally Posted by elmothemonkey
...what am i going to do?
Quit blaming your teacher and start listening in class...

5. ## Re: Triangles. help me with these questions please

I'm sorry ^ But it's true that he didn't explain to us these questions. I'm not blaming him. I'm telling the truth..

6. ## Re: Triangles. help me with these questions please

That's not really my point:
if you do not know that a triangle has a total of 180 degrees, then there's not much

7. ## Re: Triangles. help me with these questions please

im sorry.. im really slow that why i didnt really get the questions at first and when richard1234 explained some of it i tried doing them that's why i have deleted a few of my questions already... analyzing questions are my problem. ;D but what i really cannot do is 2 and 7.. which is real confusing..

8. ## Re: Triangles. help me with these questions please

2.Can a triangle have angles equal to
a. 55°, 65°, 70°
b. 53°, 64°, 73°
c. 80°, 105°, 5°

Add the angles: is the sum = 180 degrees? If not, then NOT a triangle

7. In (triangle)△DEF, <D, <E and <F -44° (deg), Find <D and <E

YOU read that...does it make any sense? WHAT is equal to -44 ?

9. ## Re: Triangles. help me with these questions please

OH lol i'm sorry abt number 7..
it's
in triangle DEF, angle D = angle E and angle F = 44degrees ; find angle D and angle E

10. ## Re: Triangles. help me with these questions please

C'mon Elmo, that's easy...
Since angle F = 44 then angle D + angle E = 180 - 44 = 136;
and since angle D = angle E then ?????

11. ## Re: Triangles. help me with these questions please

thanks they're 68deg solved.. ty again

12. ## Re: Triangles. help me with these questions please

Fine, Elmo...try HARDER next time !