Fill in the blank with the phrase that makes the proof statement true.

Given that angle 1 is congruent to angle 3 and that _ because vertical angles are congruent.

A. the two lines bisect each other
B. angle 1 is congruent to angle 4
C. angle 2 is congruent to angle 3
D. the two lines are perpendicular

idk this one i think its C

Step-by-step explanation:

Hope its right

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

step-by-step explanation:

for the free