What is the missing step in the proof? a, statement: ∠gac and ∠gab are supplementary. reason: linear pair theoremb, statement: ∠afe ≅ ∠afd reason: transitive property of equalityc, statement: ∠gac ≅ ∠baf reason: vertical angles theoremd, statement: ∠gac and ∠afd are supplementary. reason: linear pair theorem

The answer is B. Statement:∠AFE ≅ ∠AFD  Reason: Transitive Property of Equality

Step-by-step explanation:

∠AFE ≅ ∠AFD equal each other, and Transitive Property of Equality  is the correct reason.

This answer is correct as a Edmentum student!

Option B is correct.

Statement: ∠AFE ≅ ∠AFD

Reason: Transitive Property of Equality

Explanation:

Given that:

and

Prove that :

Proof:  

Given:

         ....[1]

By theorem of corresponding angles:

For parallel lines cut by transversal , the corresponding angles are congruent.

then;

          ....[2]

Transitive property of equality states that if x = y and y = z then; x = z

Using transitive property of equality in [1] and [2] we have;

By Linear pair theorem states that if the two pairs are adjacent to each other then they are supplementary.

⇒ and are supplementary.

We know that:

If two congruent angles are supplementary, then each angle is of right angle i.,e 90 degree

⇒

By definition of perpendicular line:

If two line meet at a right angle i.,e 90 degree, then those lines are perpendicular.

⇒ Hence proved!

1,150 give brainliest

step-by-step explanation

2r= 2300

r =1150