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Unformatted text preview: ( )) (( D E F Thm 4.1:Triangle Sum Thm • The sum of the measures of the interior angles of a triangle is 180 o . • m ∠ A + m ∠ B+ m ∠ C=180 o A B C Thm 4.2: Exterior Angles Thm • The measure of an exterior angle of a triangle is equal to the sum of the measures of the 2 nonadjacent interior angles. • m ∠ 1=m ∠ A+ m ∠ B 1 A B C Corollary to triangle sum thm (Corollary a statement easily proved using a thm.) * The acute angles of a right triangle are complementary. A B C ∠ A is comp. to ∠ C Assignment Assignment...
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 Spring '11
 Jackson
 Angles, Hypotenuse, triangle, Exterior Angles Thm, Triangle Sum Thm

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