△def
df = ef

prove:
∠3 = ∠4

which of the following statements would be the reason in line 4 of the proof?

Given:

In Δ DEF, ∠3=∠4.

To prove:→ DE=E F

Proof:

1.  ∠3=∠4[Given]

2. →∠1 and ∠ 3 are Supplementary to each other.

(a)⇒∠1 + ∠ 3=180°

 →∠2 and ∠ 4 are also Supplementary to each other.

(b)⇒∠2 + ∠ 4=180°

                                    [Exterior sides in opposite rays]

3. From 1 , a and b

 ⇒∠ 1 = ∠ 2[Two Angles Supplementary to equal Angles are equal to each other]

4.

 If two angles of a Triangle are equal , then side opposite to these angles are equal.

e) none of the above because the measure of angle cba is 101°

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all