i need some answers checked
@Vocaloid
good
good
good
good
<3 and <6 are not alternate interior angles (otherwise they would be congruent) notice how they ~substituted~ angle 6 for angle 2 into statement 2 to get statement 4
alright
good
they both add up to 180 not 90 so they're supplements not complements
uh I'm not 100% sure but a two column proof doesn't actually use complete sentences a paragraph proof combines the info in a two column proof and puts it into sentences so paragraph proof is a bit better matching the description
I really wouldn't know this one (not sure how this proof works) but they already used substitution property of equality so I guess symmetric is a better choice
for a transversal the two lines are parallel not perpendicular so false
your answer is right but there is again one right too
good
@princeevee ok ?
@princeevee how you think what chice may be right again ?
choice
let's let princeeevee have a little time to think/get the next question ready
have to be careful with this one 2 and 8 are alternate exterior angles but that's not the logic they used to prove it they used the fact that 2 is congruent to 6 6 is congruent to 8 therefore 2 is congruent to 8 remember what this property is?
B?
it's in the form if A then B, if B then C, therefore if A then C which is the transitive property
alright..
that's not quite how the addition property of equality works, just because there's a plus sign and equals doesn't mean that's the property being used addition property of equality would be taking a statement like A = B and stating that A + C = A + B
|dw:1529790791093:dw| since the original statement is saying that <1 and <2 are a linear pair thus adding up to 180 this is the linear pair postulate
** addition property of equality would be taking a statement like A = B and stating that A + C = B + C
oh, alright
not quite, statement 6 hasn't yet proven that the lines are parallel statement 5 is saying that angle 1 and 2 have equal measures therefore statement 6 is saying that they're congruent this is the definition of congruent angles
hm, not quite you solved for x and got 41 but it's not asking for x, it's asking for AE so you need to calculate 4x + 5
if x = 41 4x + 5 = ?
if x = 41 you can replace "x" with "41" therefore 4x + 5 = 4(41) + 5 = ?
110?
order of operations 4 * 41 then add 5
169
good so 169 = your sol'n
good
excellent
good
good
|dw:1529795518110:dw| hm, not quite. "exterior" means they need to be on the outside of the two parallel lines. (so only angles 1,2,7,8) how many pairs is this?
4, yeah.
4 total angles "how many pairs" a pair is 2 so 4/2 = 2 pairs
perpendicular lines ~have~ to intersect at 90 (otherwise they're not perpendicular) so false
this one is false because C cant be parallel to anything
hm. :S depends on how literally they want you to interpret the question. generally in math we don't assume something is parallel just because it looks parallel.
so i'ts true?
let's go with false for now i guess :S poorly worded question
@princeevee my opinion that is true
bc. b is parallel to a and d
alright, thank you, I wasn't quite sure about this one (they never actually stated that a and d were parallel which confused me)
ok i understand but in this case how is this that there is attached an image so from this image is clearly that b is parallel to a and d
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