Here's the question you clicked on:
sharon_penn
State the missing reasons in this flow proof.
wait do you mean the statements? like angleABC because the reasons are already there
not sure thats why I'm confused
I'm don't know what they're asking for :S sorry
is this you the one needed help for?
A)∠5 is an acute angle (40º) B) ∠2 is an obtuse angle (140º) C) ∠2 + ∠5 = 180° forms a supplementary angle. therefore, forms a straight line D) If a transversal intersects two parallel lines, then the interior angles on the same side of the transversal are supplementary. E) If a transversal intersects two lines and the interior angles on the same side of the transversal are supplementary, then the lines are parallel.
Not good at this, never learned it.
this is a little confusing as I compose it, but I am sure it somewhat makes sense: ∠2 is congruent to ∠1 since ∠2 and ∠5 forms a straight line or a supplementary angles (180º) then ∠4 must be congruent to ∠1 and since ∠1 is congruent to ∠2 then ∠1 and ∠5 must also be supplementary angles, which proves that line a and b are parallel
a proof starts with whats 'Given' so we can simply put the reason 'Given' for a and b.
similarly we wil be good if we just put fill the blanks c,d, and e wid approproate reasons i guess
rephrasing: A) given ∠5 in line b is an acute angle (40º) B) another given ∠2 in line a is an obtuse angle (140º) you are right about filling out the blanks, but I am not sure if the sentences D and E are even appropriate to state
thanks for the guidance, @ganeshie8
:) c, your reason is good : 'supplementary angles add up to 180' d, we can simply fill wid : ' by Definition of same-side interior angles' e, we can fill wid : 'by Converse of same-side interior angles theorem'