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Geometry help please!
Prove the Triangle Exterior Theorem.
The measure of each exterior angle of a triangle equals the sum of the measurements of its two remote interior angles.
Question in comments below.
 one year ago
 one year ago
Geometry help please! Prove the Triangle Exterior Theorem. The measure of each exterior angle of a triangle equals the sum of the measurements of its two remote interior angles. Question in comments below.
 one year ago
 one year ago

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cwrw238Best ResponseYou've already chosen the best response.1
m <1 + m < 4 = 180 degrees (angles on same line) m<2 + m<3 + m<4 = 180 ( 3 angles of triangle add up to 180 degrees) since m < 1 plus m<4 = 180 and m<2 + m<3 plus m< 4 is also = 180 degrees m<1 = m <2 + m < 3
 one year ago

442010Best ResponseYou've already chosen the best response.0
Awesome! Thank you for explaining it :)
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
yw  that is how i was taught in UK  the US method might use different terms.
 one year ago
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