marcoduuuh
Find the value of x.
(Picture below.)
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marcoduuuh
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Azteck
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What's the angle sum of a straight line?
marcoduuuh
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How do I solve for that?
alexeis_nicole
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|dw:1358998103844:dw|
180 - 130 = θ
180 - 73 - θ = x
Azteck
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Just tell me what the angle sum is for a straight line.
ashishthomas7
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73+x=130
Azteck
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@alexeis_nicole Nice. Now she can copy the answer without understanding what just happened.
marcoduuuh
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180?
ashishthomas7
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i think thats it
Azteck
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Yes. So if the angle sum of a straight line is 180, then how would you find the angle beside 130
marcoduuuh
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@ashishthomas7 so it's 57?
ashishthomas7
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yup
Azteck
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NO
marcoduuuh
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OH. THAT WAS EASY. I FORGOT ABOUT THIS LOL. Sorry guys.
marcoduuuh
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oh?
Azteck
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@marcoduuuh What's the triangle property that allowed you to find that it was 57?
ashishthomas7
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|dw:1358998413448:dw|
Azteck
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@ashishthomas7 Could you not give answers away and actually allow others to understand what's going on?
marcoduuuh
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107?
Azteck
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Do you know the property, exterior angle of a triangle?
ashishthomas7
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and now applying that angles in a triangle add upto 180
x+73+180-130=180
alexeis_nicole
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θ and 130 are supplementary angles.
so to find θ we need to subtract 130 from 180.
we also know that a whole triangle equals 180 degrees.
so once we find θ, we are able to subtract our known valus within the triangle to find x
:)
alexeis_nicole
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values*
Azteck
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@ashishthomas7 Already taught you a faster way to solving it using exterior angle of a triangle.
\[73+x=130\]
ashishthomas7
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thats wat i used first....
@Azteck
Azteck
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That's why I said your name. Are you derping or something?
Azteck
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All you did was put out an equation without telling how you got it.
ashishthomas7
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i aslo told that after i writing the eqn scroll upward and luk...
marcoduuuh
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Stahp trollin @Azteck brah.
marcoduuuh
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AND IT'S NOT THAT DIFFICULT. I UNDERSTOOD HOW THE EQUATION WAS MADE YOU DERP.