Question

how do i find the angle meaurement of ABC and ACB on a triangle.

Answer 1

got pic?

Answer 2

What information do they give you?

Answer 3

heres the triangle.

Answer 4

That's all they give you?
(I'm just asking)

Answer 5

what section is this meant to cover? are you doing trig? law of sines or cosines?

Answer 6

just congruency and geometry. im really lost with this

Answer 7

O yeah, that's important @jdoe0001

Answer 8

got any given choices?

Answer 9

What is the name of this part of the course? Like in the textbook, whats the unit or whatever.

Answer 10

that is, what are they expecting as answer, a numeric value? an expression?

Answer 11

i think a value. in degrees or something. The "ABC" has that little angle sign in front of it

Answer 12

But are there any choices?

Answer 13

nope. its called Sides and Angles of Congruent Triangles

Answer 14

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}\)

Answer 15

i have never seen this before in my life

Answer 16

because... congruence is not going to get you far on this one, nor similarility

Answer 17

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.

Answer 18

i never covered it though

Answer 19

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.

Answer 20

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

Answer 21

its on a graph though...so do the points count?

Answer 22

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

Answer 23

Or what if it has but, it was just forgotten?

Answer 24

forgotten? then.... that may be a signal to call the amnesiac MD I'd thik =)

Answer 25

its on an assignment i have to do. and i already calculated the the length.

Answer 26

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

Answer 27

one of the criteria is this though : Measure the angles of ABC and its images.

Answer 28

maybe you're asked to use a protractor :), so.. use one hehe, that'd be simple

Answer 29

Is this homework or something? do you just fill in the blank? Or do you have to show your work?

Answer 30

i have a protractor very simple. so how would i measure angle ABC with a protractor

Answer 31

is it mineral, vegetable or animal? =)

Answer 32

?? xD

Answer 33

Is that a joke?


I don't get it.

Answer 34

me either lol

Answer 35

Do you just put the answer? Or do you need to show your work?

Answer 36

https://www.youtube.com/watch?v=t4xCOUNEInI

Answer 37

just the answer. how would i do it with a protractor if i can use one

Answer 38

@jdoe0001 Is that where the joke is from?

Answer 39

Look at @jdoe0001's video.

Answer 40

i know how to use a protractor. i just need to know which lines make up angle ABC

Answer 41

Setsuna-Yuregeshi joke? hehe

Answer 42

It's this angle:

Answer 43

In the pic you originally posted. It's the one that looks kinda like that.