Mathematics
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OpenStudy (anonymous):
Angle Puzzler?
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OpenStudy (anonymous):
OpenStudy (anonymous):
All the blue numbers are irrelevant
OpenStudy (anonymous):
So ignore them, the red numbers are given angles
OpenStudy (anonymous):
and the black ones are the ones I filled in
OpenStudy (unklerhaukus):
are you looking for a particular angle,
or all of the angles?
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OpenStudy (anonymous):
All the angles with blue numbers is what I need.
OpenStudy (unklerhaukus):
you can find number 6 with supplementary angles
OpenStudy (anonymous):
Ah yes, that would be 50!
OpenStudy (anonymous):
Then the angle below it is 50 too
OpenStudy (anonymous):
I put a little more stuff in. I can't find anything else at the moment XP
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OpenStudy (unklerhaukus):
are those two verticals parallel?
OpenStudy (anonymous):
Oh, yeah here's the info: lines a and b are parallel.
lines c and d are parallel.
line d is perpendicular to e line .
OpenStudy (unklerhaukus):
ah, so at point D there are four right angles
OpenStudy (unklerhaukus):
angle 4 has a complement
OpenStudy (anonymous):
so 4 would be 30!
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OpenStudy (unklerhaukus):
yes
OpenStudy (anonymous):
OpenStudy (unklerhaukus):
angle 7 corresponds with something
OpenStudy (anonymous):
Angle 6?
OpenStudy (unklerhaukus):
not quite
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OpenStudy (anonymous):
I think its one in that triangle
OpenStudy (anonymous):
Maybe where point D is?
OpenStudy (unklerhaukus):
|dw:1384959060965:dw|
OpenStudy (anonymous):
With 4!
OpenStudy (unklerhaukus):
almost
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OpenStudy (anonymous):
Yes
OpenStudy (unklerhaukus):
|dw:1384959221577:dw|
OpenStudy (anonymous):
Ohhh. Got it XD
OpenStudy (anonymous):
12 more to go! XD
OpenStudy (unklerhaukus):
if we look at the lines a and b (which are parallel).
can you see an alternate angle?
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OpenStudy (anonymous):
Where point J and H are
OpenStudy (unklerhaukus):
Yes thats right
OpenStudy (anonymous):
Oh so 5 would be 70!
OpenStudy (unklerhaukus):
thats it!
OpenStudy (anonymous):
Got it XD
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OpenStudy (unklerhaukus):
good stuff,
now angle 11 can be found, using ' the sum of angles in a triangle is 180°
OpenStudy (anonymous):
45 degrees?
OpenStudy (unklerhaukus):
|dw:1384960053839:dw|