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

step-by-step explanation:

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )

its   c, f, a

step-by-step explanation:

c 5 gallons mark me as brainlest