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Mathematics, 20.05.2021 01:00 pattykline
Match the reasons with the statements in the proof to prove DF = EF given that DEF is a triangle by definition and angles 3 and 4 are equal.
Given:
△DEF
∠3 = ∠4
Prove:
DF = EF
1. ∠1 = ∠2
Two Angles Supplementary to Equal Angles are Equal to Each Other
2. DF = EF
Exterior Sides are in Opposite Rays
3. ∠3 = ∠4
Given
4. ∠1 and ∠3 are supplementary
∠2 and ∠4 are supplementary
If the Two Angles of a Triangle are Equal, then the Sides Opposite those Angles are also Equal
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