anonymous
  • anonymous
how do i find the angle meaurement of ABC and ACB on a triangle.
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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jdoe0001
  • jdoe0001
got pic?
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
What information do they give you?
anonymous
  • anonymous
heres the triangle.
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Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
That's all they give you? (I'm just asking)
jdoe0001
  • jdoe0001
what section is this meant to cover? are you doing trig? law of sines or cosines?
anonymous
  • anonymous
just congruency and geometry. im really lost with this
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
O yeah, that's important @jdoe0001
jdoe0001
  • jdoe0001
got any given choices?
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
What is the name of this part of the course? Like in the textbook, whats the unit or whatever.
jdoe0001
  • jdoe0001
that is, what are they expecting as answer, a numeric value? an expression?
anonymous
  • anonymous
i think a value. in degrees or something. The "ABC" has that little angle sign in front of it
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
But are there any choices?
anonymous
  • anonymous
nope. its called Sides and Angles of Congruent Triangles
jdoe0001
  • jdoe0001
ok... have you covered SOH CAH TOA yet? that is \(sin(\theta)=\cfrac{opposite}{hypotenuse} \qquad \qquad % cosine cos(\theta)=\cfrac{adjacent}{hypotenuse} \\ \quad \\ % tangent tan(\theta)=\cfrac{opposite}{adjacent}\)
anonymous
  • anonymous
i have never seen this before in my life
jdoe0001
  • jdoe0001
because... congruence is not going to get you far on this one, nor similarility
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
You're in the geometry course right? Or? If so, I believe SOH CAH TOA is supposed to be covered towards the end of algebra 1.
anonymous
  • anonymous
i never covered it though
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
After you get the answer to your initial question I can explain SOH CAH TOA. Because if u answer using that when it has not been taught or covered so far, that will be suspicious or something.
jdoe0001
  • jdoe0001
so.. I'd think this exercise may not apply to you then since you have not covered that, and I don't see how congruence will help on this triangle
anonymous
  • anonymous
its on a graph though...so do the points count?
jdoe0001
  • jdoe0001
yes... is on a grid, I can see that much so each vertex, A, B and C, have some coordinate to get their segment length, you'd need the distance formula that's simple enough but once you get the segment's length, you'd need to apply ..... hmm I'd use the law of cosines, to get any of the angles and you haven't covered any of that, thus, it may not apply to you
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Or what if it has but, it was just forgotten?
jdoe0001
  • jdoe0001
forgotten? then.... that may be a signal to call the amnesiac MD I'd thik =)
anonymous
  • anonymous
its on an assignment i have to do. and i already calculated the the length.
jdoe0001
  • jdoe0001
may well be, but you haven't covered the subject yet so... not much you could do there, without covering the subject the teacher hasn't done it is not very helpful if one is covering say... chapter 3 and dispenses exercises for students for chapter 6 if you're in say chapter 3, then that's what needs to be assigned
anonymous
  • anonymous
one of the criteria is this though : Measure the angles of ABC and its images.
jdoe0001
  • jdoe0001
maybe you're asked to use a protractor :), so.. use one hehe, that'd be simple
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Is this homework or something? do you just fill in the blank? Or do you have to show your work?
anonymous
  • anonymous
i have a protractor very simple. so how would i measure angle ABC with a protractor
jdoe0001
  • jdoe0001
is it mineral, vegetable or animal? =)
anonymous
  • anonymous
?? xD
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Is that a joke? I don't get it.
anonymous
  • anonymous
me either lol
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Do you just put the answer? Or do you need to show your work?
jdoe0001
  • jdoe0001
https://www.youtube.com/watch?v=t4xCOUNEInI
anonymous
  • anonymous
just the answer. how would i do it with a protractor if i can use one
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
@jdoe0001 Is that where the joke is from?
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Look at @jdoe0001's video.
anonymous
  • anonymous
i know how to use a protractor. i just need to know which lines make up angle ABC
jdoe0001
  • jdoe0001
Setsuna-Yuregeshi joke? hehe
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
It's this angle: |dw:1436228171391:dw|
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
In the pic you originally posted. It's the one that looks kinda like that.
jdoe0001
  • jdoe0001
|dw:1436228999016:dw|
jdoe0001
  • jdoe0001
|dw:1436229100396:dw|
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
How did you get it to be a different color?
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
O wait, never mind.
anonymous
  • anonymous
ohh omg thanks. but which of the lines do i measure. the obtuse or the acute?
jdoe0001
  • jdoe0001
@Setsuna-Yuregeshi click on [Draw] then click on [copy previous drawing] scroll up, pick it by clicking, then draw on it or delete from it by using the [selection] tool and pressing delete key
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
In the beginning you said you needed to measure ABC and ACB, look at @jdoe0001's drawings. He tells you which drawings are for which angles...
anonymous
  • anonymous
yea. but which line do i measure, and which one do i put in the bottom line of the protractor
jdoe0001
  • jdoe0001
either will do
jdoe0001
  • jdoe0001
either line if you put on one, it'll give the same angle as if you were to put it on the other same angle
anonymous
  • anonymous
i get it now. thanks so much for your help.
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
If you want, later we could teach you about SOH CAH TOA
anonymous
  • anonymous
okay mabye

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