Question

i need some answers checked

Answer 1

@Vocaloid

Answer 2

the two triangles are similar so its possible to determine a value

KM/MN = LK/NO

plug in the sides and find MN

Answer 3

7.5?

Answer 4

good

Answer 5

says it's wrong.

Answer 6

huh, really? that's strange

Answer 7

yeah...

Answer 8

I guess we can't assume that they're proportional then making your original solution correct

Answer 9

good

Answer 10

hm

I'm pretty sure its not transitive

notice how the two triangles share the top angle

the two sides on the left and right are also similar

giving us SAS theorem

Answer 11

good

Answer 12

?

Answer 13

@Vocaloid hello?

Answer 14

hm not quite

using proportional sides

(x-3)/9 = (x+2)/12

Answer 15

i got 0..

Answer 16

cross multiply

12(x-3) = 9(x+2)

distribute then solve for x

Answer 17

18?

Answer 18

good

Answer 19

symmetric not reflexive

reflexive is stating something is equal to itself

Answer 20

good

Answer 21

I think it's true (not sure how picky they are w/ the order of the naming)

Answer 22

good

Answer 23

again I'm not sure how picky they are with the naming convention but since they're naming the same two triangles each time I'm thinking it's actually true

Answer 24

good

Answer 25

another case where two triangles share one angle and a pair of corresponding sides, so SAS

Answer 26

i'm jumping through both symmetric and transitive

Answer 27

it's transitive

Answer 28

ok

Answer 29

"side side side" similarity shouldn't require any angles

Answer 30

hm

not quite

FV/VI = GV/VH solve for VI

Answer 31

2.00?

Answer 32

5.84/x = 6.55/3.27

cross multiplying gives us

6.55x = 5.84*3.27

x = ?

Answer 33

5?

Answer 34

6.55x = 5.84*3.27

multiply what 5.84 * 3.27 is

then divide by 6.55 to isolate x

Answer 35

2.9

Answer 36

good so 2.9 = your sol'n

Answer 37

good

Answer 38

i think i've did this one before...

Answer 39

yeah this is not transitive (transitive: a = b, b = c, a = c)

this has to be SAS because the two triangles share an angle and the proportional sides on the left + right

Answer 40

good

Answer 41

good guess but

if we know that all the first triangle's sides are equal (let's say each side = a)
and all the second's triangle's sides are equal (let's say each side = b)

then all the corresponding side ratios are b/a making the triangle similar via SSS

Answer 42

in general all equilateral triangles are similar according to this logic

Answer 43

@princeevee try understanding these above wrote by @Vocaloid so this choice marked by you not is right

ok. ?

Answer 44

i got that my answer was incorrect..

Answer 45

yes - ok

Answer 46

hm? why wouldn't the second choice be correct? it looks ok to me

Answer 47

sorry we talk about past exercise @Vocaloid

Answer 48

for the last posted exercise the second choice is right sure

Answer 49

using the proportionality of coresponding sides

Answer 50

good

Answer 51

actually, wait, this might be true.

Answer 52

actually no, it's false

Answer 53

you also need a compass

Answer 54

yup, false

Answer 55

good

Answer 56

"corresponding position" so <1 and <2 need to be oriented in the same direction/position

Answer 57

oh, alright

Answer 58

good

Answer 59

hm, not quite

the steps are slightly different

https://mathbitsnotebook.com/Geometry/Constructions/CCconstruction4.html

Answer 60

this one is actually true, if blue and orange are both perpendicular to black, then blue and orange have to be parallel to each other

Answer 61

good

Answer 62

good

Answer 63

hm, this one is true,

if you fold the paper so that A matches with B, you will create a crease down the middle of the paper that splits the segment in 2

Answer 64

good

Answer 65

not quite

m<1 is not equal to 4x; it's supplementary

so 4x + 76 = 180 solve for x

Answer 66

oh, 26

Answer 67

good

Answer 68

using our previous problem as a reference, consecutive interior angles are not congruent, they are suppelementary

Answer 69

good

Answer 70

good

Answer 71

good

Answer 72

good

Answer 73

alternate exterior angles are congruent not complementary

Answer 74

good

Answer 75

good

Answer 76

good

Answer 77

good

Answer 78

good

Answer 79

they just...

Answer 80

they just made the same question twice..

Answer 81

i'm going to close this to prevent lag