Triangle abc is shown below.
triangle abc; line passes through points d, b, and e
given...
Mathematics, 30.08.2019 19:30, sreyasusanbinu
Triangle abc is shown below.
triangle abc; line passes through points d, b, and e
given: ∆abc
prove: all three angles of ∆abc add up to 180°.
the flow chart with missing reason proves the measures of the interior angles of ∆abc total 180°.
which reason can be used to fill in the numbered blank space?
associative property of addition
triangle exterior angle theorem
angle addition postulate
commutative property of addition
Answers: 1
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